Merge pull request #1 from nuvolabase/master

update from nuvolabase repo
Merge pull request #2 from nuvolabase/master

update from nuvolabase repo
Allows the toJSON() SQL method to accept format parameter like the ODocument.toJSON() API
Merge branch 'master' of https://github.com/giastfader/orientdb
Merge pull request #1394 from giastfader/master

Extends the SQL Method tojson() to accept format parameter