Changed: minor improvements to SetupFactory/Legacy
Merge pull request #367 from patrickallaert/SetupFactory-Legacy-improvements

Changed: minor improvements to SetupFactory/Legacy
Actvated TTL cache by default #2
 EZP-20071 EZP-20071 - Added new user Identity interface + basic implementation
EZP-20071 - Implemented user hash lookup mechanism in HttpCache
EZP-20071 - Implemented simple hash generator (for a start)
EZP-20071 - Fixed wrong namespace
EZP-20071 - Added naive implementation of controller returning the user hash
EZP-20071 - Changed cache variation on X-User-Hash in ViewController
EZP-20071 - Fixed wrong parameter name
EZP-20071 - Removed unused ConfigResolver in HashGenerator
EZP-20071 - Implemented UserHash usage
EZP-20071 - Use repository sudo() to get list of roles for current user.