Mod: update rails 3.2.8 to 3.2.11 (security)
Merge pull request #24 from Koin/master

Update rails 3.2.8 to 3.2.11
Replace unzip command by zipruby
Add test environnement to development mongoid configuration 

In order to avoid problem seen in issue #25 after a default installation with Vagrant.
Merge pull request #26 from noplay/patch-1

Add test environnement to development mongoid configuration
Merge pull request #27 from youboox/replace_unzip_by_zipruby

Replace unzip command by zipruby