SS-597 get rid of extlib dependency; use RightSupport Mash instead
SS-597 Version bump to 3.1.0
SS-597 delegate deep_mash to deep_mash
SS-597 remove errant extlib reference
Merge pull request #25 from rightscale/sapphire_14_16_jiraSS-597_add_deep_clone2_and_deep_mash

Get rid of extlib dependency; use RightSupport mash instead of extlib mash.