Change the PHPUnit version to allow using current versions
Change the PHPUnit version to allow using current versions

The old PHPUnit 3.7 version is not compatible with PHP 5.6
yethee/DoctrineCacheBundle,ivoba/DoctrineCacheBundle,xleliberty/DoctrineCacheBundle,nicolas-grekas/DoctrineCacheBundle,nicolas-grekas/DoctrineCacheBundle,eXtreme/DoctrineCacheBundle,mente/DoctrineCacheBundle,ivoba/DoctrineCacheBundle,doctrine/DoctrineCacheBundle,yethee/DoctrineCacheBundle,eXtreme/DoctrineCacheBundle,xleliberty/DoctrineCacheBundle,mente/DoctrineCacheBundle