Added contains command.
Added contains command.

eXtreme/DoctrineCacheBundle,stof/DoctrineCacheBundle,mente/DoctrineCacheBundle,doctrine/DoctrineCacheBundle,mente/DoctrineCacheBundle,xleliberty/DoctrineCacheBundle,yethee/DoctrineCacheBundle,ivoba/DoctrineCacheBundle,eXtreme/DoctrineCacheBundle,nicolas-grekas/DoctrineCacheBundle,yethee/DoctrineCacheBundle,nicolas-grekas/DoctrineCacheBundle,stof/DoctrineCacheBundle,ivoba/DoctrineCacheBundle,xleliberty/DoctrineCacheBundle