Renamed: ContentTypeGroupList to ContentTypeGroupRefList
Added: ContentTypeGroupRefList/ContentTypeGroupRef to force list map
Fixed: extracting group references
Fixed: return groups array and not list object
Fixed: complete ContentType for group list reference, extracting group URL values, removed deprecated property
Updated Symfony to 2.2.0
Simplified external storage based field types definition by making $gateways constructor argument optional.

MVC field type factory registers gateways with addGateway() method.
Fixed a typo in REST-API specs

(fieldDefinitionIdentifer)
Merge pull request #250 from ezsystems/gatewaybasedstorage_empty_array

Simplified external storage based field types definition
Merge branch 'master' into spiPersistenceCache
Update Stash-bundle to use Stash 0.10 instead of 0.9
Fix Legacy Bundle ConfigurationConverterTest falures