Revert "Merge pull request #330 from vlastv/master"

This reverts commit b50e1b6e8720b8f4e3cd0dac7f95c0418ae951b1, reversing
changes made to 7ca852cf51bacc436485d110b92294722ef99710.
FilesystemLoader updated
CacheManager updated
Merge pull request #355 from ossinkine/cache-manager-0.x

CacheManager updated
Merge pull request #354 from ossinkine/filesystem-loader-0.x

FilesystemLoader updated
Merge remote-tracking branch 'liip/0.x'

Conflicts:
	Imagine/Cache/CacheManager.php
	Tests/Imagine/Cache/CacheManagerTest.php
	composer.json