cleanup + debuggage

...a/be/uantwerpen/datamining/pattern_mining/ArffToSPMF.java

...pen/datamining/pattern_mining/MakePatternOccurrences.java

.../be/uantwerpen/datamining/pattern_mining/MakeWindows.java

...e/uantwerpen/datamining/pattern_mining/MineUsingSPMF.java

src/main/java/be/uantwerpen/ldataminining/model/Table.java

...antwerpen/ldataminining/preprocessing/ArffStatistics.java

.../be/uantwerpen/ldataminining/preprocessing/ArffUtils.java

src/main/java/be/uantwerpen/mime_webapp/Settings.java

...en/mime_webapp/controller/FileItemMetadataController.java

...erpen/mime_webapp/controller/PatternMiningController.java

...e/uantwerpen/mime_webapp/controller/StaticController.java

...antwerpen/mime_webapp/controller/TransformController.java

src/main/webapp/WEB-INF/views/transform.jsp