Add isServerMinimumVersion(int major, int minor) to public API
Merge pull request #29 from jesperpedersen/public_serverversion

Add isServerMinimumVersion(int major, int minor) to public API
Implement CallableStatement
Merge branch 'develop' of https://github.com/impossibl/pgjdbc-ng into develop
Update with new connection class
Allow dash and underscore in database names