Geile neue Tagesansicht.

Geile neue Kalenderansicht.
Add better precision to mysql timestamps.
Fix bug, where to many relations would crash, when they related a class with itself.
Sort and filter locale aware and case insensitive
Added Qp::isLocked (renamed old isLocked to lockStatus).
Fix crash in QpDatabaseschema::createCleanSchema, when locks are disabled.