updated util
added instantiation of CatmaidStackStore in BackendClient
bugfix: input of SolutionGuarantor was renamed
added pysopnet.BackendType enum (values Local and Django)
added {s,g}etCatmaidHost to python wrapper
removed DjangoUrl from pysopnet::ProjectConfiguration
DjangoGenerators: return shared_ptrs to DjangoBlockManager instead of BlockManager
Updated util module
DjangoSegmentStore: fixed some bugs. Things appear now to work
SliceStoreTest: re-use output pipeline variables
Updated tests in binaries. In particular, larry.cpp now uses Django stores for solution testing
DjangoSegmentStore: less verbose log message