Merge pull request #722 from godarklight/use-sqlite-pooling

Turn on connection pooling for SQLite.
Fix server won't create fresh SQLite universe DB when pooling is active
DB Use counting and reference locking

Fixes upgrade/reader crashing issue.
Merge pull request #726 from nevercast/bug-reader

DB Use counting and reference locking
Possible fix for #727
Send orbital data using orbital parameters instead of co-ordinate vectors.