Cleanup: remove the gem file.
Release 2.0.0.rc2: match with ohm 2.0.0.rc2

No changes, just a matching release for ohm 2.0.0.rc2
Merge tag '2.0.0.rc2' of github.com:cyx/ohm-contrib into release_v2

Release 2.0.0.rc2
Update ohm to 2.0.0.
Release 2.0.0.
Merge pull request #29 from frodsan/release_v2

Release v2