Added cleanUpOld() which lets CM_Paging_Log_Abstract child classes clean their entries on their own
bugfix
Amended key name
added test, removed cleanup and put the deleteOld() calls directly into CLI
removed debug stuff
Make cleanup methods non-static
Fix maintenance cli error, use getProtectedMethod instead of invokeMethod (remove invokeMethod fully)
Merge pull request #1260 from cm-jan/issue-1260

Make it possible to store different log entry types for different periods of time