Cleaning up code
Merge pull request #4 from bcipolli/develop

Develop
Delete adjustrates4sdt.m
Delete applygaborfilters2image.m
Delete trainingtargets.m
Delete testingtargets.m
Delete testingresults.m
Delete sortem2.m
Delete sensitivitycriterion4sdt.m
Delete projectonPC.m
Delete principalcomponentsanalysis.m
Delete perceptronvalidate.m
Delete perceptrontrain.m
Delete perceptronlearn.m
Delete perceptroncompare.m
Delete perceptronclassify.m
Delete percent.m
Delete pc_evectors.m
Delete normalize.m
Delete mode2.m