Implemented insert() and update() from abstract AbsDAO in AppComponentIdedVersionedItemTypeDAO. Previously, they were protected methods with different signatures. These methods now make a copy of their VersionedItemType parameters and modify the copies. Callers of these methods no longer need to make copies first.
Removed insert() and update() methods from many of the classes derived from AppComponentIdedVersionedItemTypeDAO as they can now simply use the ones in the parent class.
Made sure all strings in sql statements are escapeSql().
