Fix installer UI, remove footer-install style

app/Resources/public/css/base.css

@@ -4580,27 +4580,6 @@ div#chat-remote-video video {
 #page-install .checkbox{
     margin-bottom: 10px;
 }
-#page-install .footer-install p{
-    padding: 0;
-    margin: 0;
-}
-#page-install .content{
-    display: inline-block;
-}
-#page-install .footer-install{
-  color: #666666;
-  background: none;
-  border: 1px solid #DDD;
-  border-radius: 5px;
-  padding-bottom: 15px;
-  padding-top: 15px;
-}
-#page-install footer a{
-  color: #333333;
-}
-#page-install footer a:hover{
-  color: #666666;
-}
 #page-install pre{
   margin-top: 5px !important;
 }

main/install/index.php

@@ -416,11 +416,11 @@ if ($encryptPassForm == '1') {
 
 <div id="page-install">
 <div id="main" class="container">
+    <div class="row">
         <div class="panel panel-default">
         <div class="panel-body">
-    <div class="row">
+
         <div class="col-md-8">
-            <div class="content">
         <form class="form-horizontal" id="install_form" method="post" action="<?php echo api_get_self(); ?>?running=1&amp;installType=<?php echo $installType; ?>&amp;updateFromConfigFile=<?php echo urlencode($updateFromConfigFile); ?>">
 <?php
 
@@ -970,7 +970,6 @@ $poweredBy = 'Powered by <a href="http://www.chamilo.org" target="_blank"> Chami
 ?>
           </form>
         </div>
-        </div>
         <div class="col-md-4">
             <div class="logo-install">
                 <img src="<?php echo api_get_path(WEB_CSS_PATH) ?>themes/chamilo/images/header-logo.png" hspace="10" vspace="10" alt="Chamilo" />
@@ -992,14 +991,19 @@ $poweredBy = 'Powered by <a href="http://www.chamilo.org" target="_blank"> Chami
                 </a>
             </div>
         </div>
-
-      </div>
         </div>
         </div>
-        <footer class="footer-install">
+
+        <div class="panel panel-default">
+        <div class="panel-body">
+            <div class="col-md-12">
                 <div style="text-align: center;">
                     <?php echo $poweredBy; ?>
                 </div>
-        </footer>
+            </div>
+        </div>
+        </div>
+    </div>
+  </div>
 </body>
 </html>