@ Testing, not to use!
scaled histogramm diff
corrected off by 1 error in scaling
it works! (casting test)
Merge branch 'Memento'
Memento Pointer Tests done!
Merge branch 'FilterListOperations' into Karsten
fixed. instance issue
Merge branch 'FilterListOperations'
Merge branch 'EarthMoversHistogramDiff'
CURRENTLY BROKEN - XML(Saver+Loader) now singelton
little fix stuff
Merge branch 'FilterListOperations'
fixed missing file issue
Merge branch 'FilterListOperations'
XMLLoader now observable
Implemented Project (now singelton)
Merge branch 'Karsten' into Präsentation

Conflicts:
	CTT/Project.cpp
	ctt/OperationList.cpp
	ctt/OperationList.h
Add pointer typedefs to NoScalePolicy and VideoDisplayPolicy
Change getInstance of ViewState to return normal pointer