diff --git a/composer.lock b/composer.lock
index eb7dabe..618983c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,7 +1,7 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "1812fa080861f1fd00320ca0ab0acdb8",
@@ -39,28 +39,30 @@
         },
         {
             "name": "google/recaptcha",
-            "version": "1.1.3",
+            "version": "1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/google/recaptcha.git",
-                "reference": "5a56d15ca10a7b75158178752b2ad8f755eb4f78"
+                "reference": "e7add3be59211482ecdb942288f52da64a35f61a"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/google/recaptcha/zipball/5a56d15ca10a7b75158178752b2ad8f755eb4f78",
-                "reference": "5a56d15ca10a7b75158178752b2ad8f755eb4f78",
+                "url": "https://api.github.com/repos/google/recaptcha/zipball/e7add3be59211482ecdb942288f52da64a35f61a",
+                "reference": "e7add3be59211482ecdb942288f52da64a35f61a",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.5"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8"
+                "friendsofphp/php-cs-fixer": "^2.2.20|^2.12",
+                "php-coveralls/php-coveralls": "^2.1",
+                "phpunit/phpunit": "^4.8.36|^5.7.27|^6.59|^7"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -72,15 +74,15 @@
             "license": [
                 "BSD-3-Clause"
             ],
-            "description": "Client library for reCAPTCHA, a free service that protect websites from spam and abuse.",
-            "homepage": "http://www.google.com/recaptcha/",
+            "description": "Client library for reCAPTCHA, a free service that protects websites from spam and abuse.",
+            "homepage": "https://www.google.com/recaptcha/",
             "keywords": [
                 "Abuse",
                 "captcha",
                 "recaptcha",
                 "spam"
             ],
-            "time": "2017-03-09T18:44:34+00:00"
+            "time": "2018-08-05T09:31:53+00:00"
         },
         {
             "name": "kanellov/slim-twig-flash",
@@ -573,16 +575,16 @@
         },
         {
             "name": "slim/slim",
-            "version": "3.10.0",
+            "version": "3.11.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/slimphp/Slim.git",
-                "reference": "d8aabeacc3688b25e2f2dd2db91df91ec6fdd748"
+                "reference": "d378e70431e78ee92ee32ddde61ecc72edf5dc0a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/slimphp/Slim/zipball/d8aabeacc3688b25e2f2dd2db91df91ec6fdd748",
-                "reference": "d8aabeacc3688b25e2f2dd2db91df91ec6fdd748",
+                "url": "https://api.github.com/repos/slimphp/Slim/zipball/d378e70431e78ee92ee32ddde61ecc72edf5dc0a",
+                "reference": "d378e70431e78ee92ee32ddde61ecc72edf5dc0a",
                 "shasum": ""
             },
             "require": {
@@ -640,7 +642,7 @@
                 "micro",
                 "router"
             ],
-            "time": "2018-04-19T19:29:08+00:00"
+            "time": "2018-09-16T10:54:21+00:00"
         },
         {
             "name": "slim/twig-view",
@@ -694,17 +696,75 @@
             "time": "2018-05-07T10:54:29+00:00"
         },
         {
-            "name": "symfony/polyfill-mbstring",
-            "version": "v1.8.0",
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.9.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "3296adf6a6454a050679cde90f95350ad604b171"
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/3296adf6a6454a050679cde90f95350ad604b171",
-                "reference": "3296adf6a6454a050679cde90f95350ad604b171",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/e3d826245268269cd66f8326bd8bc066687b4a19",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2018-08-06T14:22:27+00:00"
+        },
+        {
+            "name": "symfony/polyfill-mbstring",
+            "version": "v1.9.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-mbstring.git",
+                "reference": "d0cd638f4634c16d8df4508e847f14e9e43168b8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/d0cd638f4634c16d8df4508e847f14e9e43168b8",
+                "reference": "d0cd638f4634c16d8df4508e847f14e9e43168b8",
                 "shasum": ""
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             "require": {
@@ -716,7 +776,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.8-dev"
+                    "dev-master": "1.9-dev"
                 }
             },
             "autoload": {
@@ -750,24 +810,25 @@
                 "portable",
                 "shim"
             ],
-            "time": "2018-04-26T10:06:28+00:00"
+            "time": "2018-08-06T14:22:27+00:00"
         },
         {
             "name": "twig/twig",
-            "version": "v2.4.8",
+            "version": "v2.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/twigphp/Twig.git",
-                "reference": "7b604c89da162034bdf4bb66310f358d313dd16d"
+                "reference": "6a5f676b77a90823c2d4eaf76137b771adf31323"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/twigphp/Twig/zipball/7b604c89da162034bdf4bb66310f358d313dd16d",
-                "reference": "7b604c89da162034bdf4bb66310f358d313dd16d",
+                "url": "https://api.github.com/repos/twigphp/Twig/zipball/6a5f676b77a90823c2d4eaf76137b771adf31323",
+                "reference": "6a5f676b77a90823c2d4eaf76137b771adf31323",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0",
+                "symfony/polyfill-ctype": "^1.8",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "require-dev": {
@@ -778,7 +839,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.4-dev"
+                    "dev-master": "2.5-dev"
                 }
             },
             "autoload": {
@@ -807,16 +868,16 @@
                 },
                 {
                     "name": "Twig Team",
-                    "homepage": "http://twig.sensiolabs.org/contributors",
+                    "homepage": "https://twig.symfony.com/contributors",
                     "role": "Contributors"
                 }
             ],
             "description": "Twig, the flexible, fast, and secure template language for PHP",
-            "homepage": "http://twig.sensiolabs.org",
+            "homepage": "https://twig.symfony.com",
             "keywords": [
                 "templating"
             ],
-            "time": "2018-04-02T09:24:19+00:00"
+            "time": "2018-07-13T07:18:09+00:00"
         }
     ],
     "packages-dev": [
@@ -876,25 +937,28 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.7.0",
+            "version": "1.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e"
+                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
+                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.1"
+            },
+            "replace": {
+                "myclabs/deep-copy": "self.version"
             },
             "require-dev": {
                 "doctrine/collections": "^1.0",
                 "doctrine/common": "^2.6",
-                "phpunit/phpunit": "^4.1"
+                "phpunit/phpunit": "^7.1"
             },
             "type": "library",
             "autoload": {
@@ -917,7 +981,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2017-10-19T19:58:43+00:00"
+            "time": "2018-06-11T23:09:50+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -1073,16 +1137,16 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.7.6",
+            "version": "1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712"
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
-                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
+                "reference": "4ba436b55987b4bf311cb7c6ba82aa528aac0a06",
                 "shasum": ""
             },
             "require": {
@@ -1094,12 +1158,12 @@
             },
             "require-dev": {
                 "phpspec/phpspec": "^2.5|^3.2",
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev"
+                    "dev-master": "1.8.x-dev"
                 }
             },
             "autoload": {
@@ -1132,7 +1196,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-04-18T13:57:24+00:00"
+            "time": "2018-08-05T17:53:17+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2039,20 +2103,21 @@
         },
         {
             "name": "symfony/yaml",
-            "version": "v4.0.9",
+            "version": "v4.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "275ad099e4cbe612a2acbca14a16dd1c5311324d"
+                "reference": "367e689b2fdc19965be435337b50bc8adf2746c9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/275ad099e4cbe612a2acbca14a16dd1c5311324d",
-                "reference": "275ad099e4cbe612a2acbca14a16dd1c5311324d",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/367e689b2fdc19965be435337b50bc8adf2746c9",
+                "reference": "367e689b2fdc19965be435337b50bc8adf2746c9",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": "^7.1.3",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
                 "symfony/console": "<3.4"
@@ -2066,7 +2131,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "4.1-dev"
                 }
             },
             "autoload": {
@@ -2093,7 +2158,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-04-08T08:49:08+00:00"
+            "time": "2018-10-02T16:36:10+00:00"
         },
         {
             "name": "webmozart/assert",
diff --git a/db/surfaces2018.db b/db/surfaces2018.db
index d96c81d..aa5e059 100644
Binary files a/db/surfaces2018.db and b/db/surfaces2018.db differ
diff --git a/public/img/afiche.png b/public/img/afiche.png
index f887b5c..da86920 100644
Binary files a/public/img/afiche.png and b/public/img/afiche.png differ
diff --git a/public/style/style.css b/public/style/style.css
index c79b5a6..4754aeb 100644
--- a/public/style/style.css
+++ b/public/style/style.css
@@ -114,6 +114,7 @@ hr.separador{
 { /*width: 860px;*/
   /*position: relative*/
   /*height: 200px;*/
+  
   padding:10px 0px;
   background:transparent;
 
@@ -203,7 +204,7 @@ ul#menu li a{
   font-family: sans-serif;
 }
 ul#menu li.active a, ul#menu li a:hover{
-  color: #FC9C04;
+  color: #69b4f7;
 }
 
 
diff --git a/templates/header.html b/templates/header.html
index 42dfdd6..28913ca 100644
--- a/templates/header.html
+++ b/templates/header.html
@@ -1,18 +1,18 @@
 <header id="header">
   <!--<div class="bg"></div>-->
 
-  <div id="logo" class="jumbotron" data-parallax="scroll" data-image-src="img/headerpic2.jpg">
+  <div id="logo" class="jumbotron" data-parallax="scroll" data-position="left center" data-natural-height="803" data-natural-width="2916" data-image-src="img/headerpic2.jpg">
     <div id="logo_text">
 
       <!-- class="logo_colour", allows you to change the colour of the text -->
-      <h1 class="title"><a href="/"><span class="logo_colour"> Workshop on Surfaces</span></a></h1>
+      <h1 class="title"><a href="/"><span class="logo_colour"> Workshop on Surfaces Dynamics</span></a></h1>
 
       <h2 class="subtitle">
-        <strong>Celebrating Patrice Le Calvez 60<sup>th</sup> birthday</strong><br>
+        <strong>On the occasion of Patrice Le Calvez 60<sup>th</sup> birthday</strong><br>
       </h2>
 
       <h2 id="when" class="subtitle">
-        <strong>10 &#8211; 14, December 2018</strong>
+        <strong>17 &#8211; 29, December 2018</strong>
       </h2>
       <h2 id="where" class="subtitle">
         <strong>Montevideo, Uruguay</strong>
diff --git a/templates/index.html b/templates/index.html
index 121d54f..e117e04 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -17,7 +17,7 @@
     idea is to have few talks and lots of discussion time.
   </p>
   <hr class="separador">
-  <p>
+  <!--<p>
     During the conference we will be holding  a memorial recognition to Ricardo Mañé
     (1948-1995), a top Uruguayan (and Brazilian) mathematician who worked on Dynamical
     Systems, and who in 2018 would have been 70 years old.
@@ -87,5 +87,5 @@
         </div>
       </div>
     </div>
-  </div>
+  </div>-->
 {% endblock %}
diff --git a/templates/layout.html b/templates/layout.html
index dc41e95..3703feb 100644
--- a/templates/layout.html
+++ b/templates/layout.html
@@ -2,13 +2,13 @@
 <html>
 
 <head>
-  <title>Surfaces Workshop</title>
-  <meta name="description" content="Workshop on Surfaces" />
+  <title>Surface Dynamics Workshop 2018</title>
+  <meta name="description" content="Workshop on Surfaces Dynamics 2018" />
   <meta name="keywords" content="Workshop Surfaces Patrice Le Calvez" />
   <meta http-equiv="content-type" content="text/html; charset=utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <link rel="icon" type="image/x-icon" href="favicon.ico" />
-  <link rel="alternate" href="http://ggdworkshop.cmat.edu.uy" hreflang="es-uy" />
+  <link rel="alternate" href="http://www.surfacesdynamics2018.cmat.edu.uy" hreflang="es-uy" />
 
   <!-- Jquery -->
   <script type="text/javascript" src="js/lib/jquery/jquery-3.2.1.min.js"></script>
diff --git a/templates/sidebar.html b/templates/sidebar.html
index e76f1e9..334d2b7 100644
--- a/templates/sidebar.html
+++ b/templates/sidebar.html
@@ -29,6 +29,6 @@
 <div class="row">
   <div class="col-xs-12 text-center">
     <h1>Contact</h1>
-    <h4><a href="mailto:ggdworkshop@cmat.edu.uy">ggdworkshop@cmat.edu.uy</a></h4>
+    <h4><a href="mailto:surfacedynamics2018@cmat.edu.uy">surfacedynamics2018@cmat.edu.uy</a></h4>
   </div>
 </div>