Merge pull request #21 from thefactory/add_gets

change get to get[A] and remove getString
add hstore parsing
Merge branch 'master' into thefactory
Merge branch 'thefactory' of github.com:thefactory/finagle-postgres into thefactory
Merge branch 'add_hstore' into thefactory

Conflicts:
	src/main/scala/com/twitter/finagle/postgres/protocol/Values.scala