Removed creation of old classes "OGraphVertex" and "OGraphEdge" with all the properties. Now it's only V and E
Gremlin function now accepts "it" as current record too ("current" remains). This to get closer to the Tinkerpop names
Removed error 403 in favor of 401 to let the browser ask server's user+pass even if it's in HTTP header
Moved Dijkstra and Shortest Path function into the GraphDB module. Now use BP. Removed ancient GraphDB API. Added serialization of sets as type='e' in JSON
Merge branch 'master' of https://github.com/nuvolabase/orientdb