Change how lmdb does propEnc encoding - drops the use of use_bin_type (which we do in msgenpack).  This provides a consistent encoding for prop values across unicode/str types in python 2.  Does not appear to have impact on existing cores for Python3.
Change how lmdb does propEnc encoding - drops the use of use_bin_type (which we do in msgenpack).  This provides a consistent encoding for prop values across unicode/str types in python 2.  Does not appear to have impact on existing cores for Python3.

vertexproject/synapse,vertexproject/synapse,vivisect/synapse,vertexproject/synapse