First lot of code formatting done, phew!
Last lot of code formatting to PSR-2
Missed a bit
Merge pull request #2072 from symphonycms/psr-code-standard

Move the codebase to PSR-2
Correct syntax error
Fix error observed in PHP 5.4.28; sprintf failed when using double quotes

Using double quotes, the params we're being pre evaluated by php before sprint got to replacing them, and a fatal error occurred.
Add Manager restrictions for Extension navigation. Fixes #2058
Abstract the creation of Error nodes in Events
Added Code Climate badge
Update for 2.4.1 beta
Remove old backwards compatibile Datasource/Event files from Symphony 2.2.x
Merge branch 'integration' of github.com:symphonycms/symphony-2 into integration
Simplify the migration upgrade function with late static binding
change Symphony version in the .htaccess template
converted to spaces
Merge pull request #2080 from DeuxHuitHuit/htaccess

Htaccess version
added validation in order to spot errors sooner: element can not be child of itself
added @since Symphony 2.4.1 on validateChild
Merge pull request #2081 from DeuxHuitHuit/XMLElement-this

XMLElement: prevent any element from being a child of itself.
Add CACHE constant to Provider interface