[INTERNAL] magic number removed
[API] Euclidean distance functor added
[API] Euclidean distance functor added
[INTERNAL] return fixed
[API] GridClustering template class added
[API] some functionality moved to template class GridClustering
[API] multiset distance list added
[API] full functionality moved to template class GridClustering
[INTERNAL] MultiplexLoaclClustering replaced by GridClustering
[TEST] class test added
[TEST] class test added
[API] MultiplexLocalClustering removed
[API,TEST] removed SILACClustering, HierarchicalClustering and HashGrid
[API,TEST] old clustering code restored
[API] small fix
[API,TEST] SILACClustering removed
[API,TEST] HierarchicalClustering removed
[API,TEST] SILACPattern and SILACPoint removed
[DOC] properties B further documented
[API] GridClustering renamed to GridBasedClustering