REVIEW: remove snappy

as it can have issues with unpacking/deleting of native lib under tmp when restarting, instead set OrientDB compression to 'nothing' based on latest advice: http://stackoverflow.com/a/25114789 (this is similar to H2 which turns off compression by default)

http://bamboo.s/browse/NX-OSSF204-2
Note the extra package here is just to keep orientdb-core happy as it has a mandatory import of "org.xerial.snappy". We now set the compression to "nothing" which means it will never try to access this package, so it's enough to just declare that something provides it (even if the actual source of the package has gone).