WIP image support + cleaned up exceptions

lib/dba.jar

pom.xml

...java/be/uantwerpen/datamining/images/ImageClustering.java

...a/be/uantwerpen/datamining/images/ImageClusteringDTW.java

...main/java/be/uantwerpen/datamining/images/ImageStore.java

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

...erpen/datamining/pattern_mining/RunPBADEmbeddingOnly.java

...ava/be/uantwerpen/exception/InvalidHeapSizeException.java

src/main/java/be/uantwerpen/exception/SPMFException.java

...be/uantwerpen/ldataminining/preprocessing/ApplyRules.java

...rpen/ldataminining/preprocessing/ApplyStructureUtils.java

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

...antwerpen/ldataminining/preprocessing/ArffTransforms.java

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

...pen/ldataminining/preprocessing/AutoConvertCSVToArff.java

...a/be/uantwerpen/ldataminining/preprocessing/CSVUtils.java

...ntwerpen/ldataminining/preprocessing/FindNullPattern.java

...antwerpen/ldataminining/preprocessing/SQLQueryOnArff.java

src/main/java/be/uantwerpen/ldataminining/utils/IOUtils.java

...be/uantwerpen/mime_webapp/controller/ImageController.java