Added ImageDatabase class to save all images there and sort training
images and classify images.
Implemented Image loading of a single file in the TreeWidget into the image data base.
Rewrote the Computation Manager to make use of the BOW classes.
Updated the Toolbox to be compatible with the new BOW Trainer and
classificator.
Merge branch 'master' into develope
Merge branch 'master' of https://github.com/NPTricky/img-classification-ss13
Moved the other ComputationManager into the src Directory.