REIVEW: [NX-518] Orient database manager

This PR addresses the following issues:

https://issues.sonatype.org/browse/NX-518
https://issues.sonatype.org/browse/NX-519
https://issues.sonatype.org/browse/NX-542
ya, I wasn't willing to go change the name style to {export|restore|import|export}Database just to avoid use of reserved, so I went with this wee little turd. :-\