NEW: module_system | dblayer -> added a base class for db drivers [ticket #899]
Merge branch 'master' of https://github.com/kajona/kajonacms

# By smeyer (4) and sidler (1)
# Via smeyer
* 'master' of https://github.com/kajona/kajonacms:
  UPDATE:  module_system| class_rights -> class_rights not instantiated anymore in method filterObjectsByRight
  modulemodule_system| class_rights ->method filterObjectsByRight is now non static
  BUG: module_installer -> the core-directories missed a leading slash, causing the validation of write-permissions to fail
  modulemodule_system| class_rights ->added method filterObjectsByRight
  modulemodule_system| class_admin_simple ->in method getNewEntryAction the right is now being checked on the given object itself