Fix build with enable-final:

- sAppName -> sAgentAppName in agentbase, because it clashes with sAppName used in resourceBase.
- s_instance -> s_attributeInstance in attributefactory.cpp, because it clashes with s_instance in control.cpp
- removed the implementation of Akonadi::CollectionPrivate in collection.cpp, as the same class is implemented in _p.h
- tweak build order, because the qHash for akonadi::item is needed earlier.
Let me know if any if these changes could break anything.


svn path=/trunk/KDE/kdepimlibs/; revision=814940