Support 'LONG' type

[nkibler7]

From the sounds of it, Waterline wants this to be at the database adapter level, per this issue. This has already been done to sails-mysql as well.

OrientDB does have long type support (-2⁶³ through 2⁶³-1) and it would be nice to use it, having it persist through schema migrations. For now, I can change my OrientDB field type directly, but if I perform a schema migration, I'll have to change it again.

[sixpounder]

I suggest you to follow this thread balderdashy/waterline#981.
In the meanwhile, you could edit the orientdb adapter in a way similar to the one I used in the PR you referenced, I think there should be no problems with that (if tests are ok)