Updated to 2.2.* release and added symfony/config
Updated sample index so it's simpler and easier to localize
Updated sample render to match expected from sample index
Updated composer.lock to match changes to composer.json
Updated Project::init() to return instance of Config
Added getAvailableLocales(), untested
Added getActiveLocales(), untested
Added test case for Project::init returning instance of Config
Added french and english sample PO files for localized build and test