Bump version to 0.3.1.0
Added tag 0.3.1.0 for changeset ae0fb4fd90f3
Fix compilation warnings with GHC 7.8

--HG--
extra : amend_source : c97948daf83af578a3f9e202d4989001d1cbb0fd
Bump version to 0.3.1.1
Added tag 0.3.1.1 for changeset b5960b72c2e8