FIX: Few changes on header and footer global view
DELETION: Removing gantt.js library (useless)
FIX: Removing obsolete reference to a datamapper
FIX: Removing datamapper references
UPDATE: Updating CodeIgniter from 2.1.x to 2.1.4
FIX: Missing language package. Internationalization will be set up later.
FIX: Setting 'GMT' as the default timezone for PHP 5.3
FIX: Fixing some recording issues on time data
Merge branch 'develop' into gantt

Conflicts:
	application/views/header.php
[FIX] Changing the Apache .htaccess document to fix an acces problem
[CORE] Organizing the website in order to provide an API
[GANTT] v0.1 - Creating an extension for D3.js. Resolving PERT algorithm and working on visualization
[CORE] Application is now divide in 2 parts : API and Website
[FIX] Fix for a broken link in the homepage
[FIX] Missing index.php
[UPDATE] Updating the creation/connexion views, and libraries references.
.DS_Store banished!
[UPDATE] Updating account creation rules
[UPDATE] Updating the general error template
[ADD] Adding assets