Bump NPM version to 0.2.1 in preparation for publishing.
Bump NPM version to 0.2.1 in preparation for publishing.

jlongster/unwinder,jlongster/unwinder,jlongster/unwinder,liviuignat/regenerator,rafaelstz/regenerator,RReverser/js-goto-transpiler,facebook/regenerator,kittens/regenerator,jlongster/transmogrifier,Jericho25/regenerator,rwaldron/regenerator,jlongster/transmogrifier,sebmck/regenerator,sebmck/regenerator,juliocanares/regenerator,liviuignat/regenerator,kittens/regenerator,RReverser/js-goto-transpiler,facebook/regenerator,rafaelstz/regenerator,Jericho25/regenerator,facebook/regenerator,juliocanares/regenerator