cache dir creation with correct file mod
added options to set mode (used by mkdir and chmod)  for cache directory and files
changed formatting
added tests for CFileCache cacheFileMode and cachePathMode
added CHANGELOG line
Merge branch 'fix-cache-dir-permissions' of https://github.com/ujovlado/yii into ujovlado-fix-cache-dir-permissions

* 'fix-cache-dir-permissions' of https://github.com/ujovlado/yii:
  added CHANGELOG line
  added tests for CFileCache cacheFileMode and cachePathMode
  changed formatting
  added options to set mode (used by mkdir and chmod)  for cache directory and files
  cache dir creation with correct file mod

Conflicts:
	CHANGELOG