SS-597 add Mash to RightSupport
SS-597 bump version
SS-597 remove final traces of ::Mash from right_support
Merge pull request #138 from rightscale/sapphire_14_16_jiraSS-597_add_deep_clone2_and_deep_mash

Add extlib Mash-workalike so we can use it without pulling in the rest of extlib