hammer 0.1.2 release

Scratch builds:
- hammer_cli: http://ci.theforeman.org/view/Packaging/job/packaging_build_deb_dependency/534/
- hammer_cli_foreman: http://ci.theforeman.org/view/Packaging/job/packaging_build_deb_dependency/535/
- clamp: http://ci.theforeman.org/view/Packaging/job/packaging_build_deb_dependency/536/