Correct function braces alignement

As in the website:
- Classes and functions: opening brace returned
- Foreach, if, else… statements: opening brace inline
Add website domain to nelmio config
Add core bundle configuration parameters
Change the videos directory

Move any video file fixtures you may have created from web/uploads/videos to web/videos
Add naming utilities

Add namer class, with utilities to generate file names, and a namer
interface for the one-up bundle
Add lease web api-caller bundle

Run php composer.phar install.
This bundle helps sending j-son data between php pages.
Depending on your operating system, you may need to install php-curl. More information here: https://github.com/LeaseWeb/LswApiCallerBundle#step-3-make-sure-the-curl-module-in-php-is-enabled. This operation is not required for Mamp users.
Add lease web api-caller configuration
Correct indentation in parameters.yml.dist
Add upload listener
Add uploads folder to .gitignore
Add callback controller