BREAKING Removed superfluous "MiniApp" suffix
Why: Some apps still use the old legacy suffix MiniApp. We removed it
as it bears no value befor introducing those tools publically.
How to adapt: the executable names are changed as follows:
MitkMapImageMiniApp -> MitkMapImage
MitkMatchImageMiniApp -> MitkMatchImage
MitkStitchImageMiniApp -> MitkStitchImage