adding xdi2-mongodb to PORTS list
more consistent naming of graph factories
small bugfix
fixed class name for wrappers
removing support for $add and $mod
updates
property serializing json null
properly deserializing json null
proper support for cloud numbers
restructuring unit tests
jsons store improvements
using sha 512 instead of 384
support random graph identifiers
updated cleanup functions and unit tests
more unit test cleanup
cleanup gitignore
properties store cleanup
update server configurations
improving JSON based stores
fixing unit test