Merge pull request #1 from nicocoffo/master

Added InfiniteRange for pg tsrange with some simple comparison functions...
Setting version to 0.4.0
Setting version to 0.4.1-SNAPSHOT
This should tidy things a little bit.
Setting version to 0.5.0
Setting version to 0.5.1-SNAPSHOT
Goddamned scala
Setting version to 0.5.1
Setting version to 0.5.2-SNAPSHOT
Added wrapper and helper for PGobject.