updated changelog for 1.2.1
update latest stable to 1.2.1 in readme
Merge branch 'master' of github.com:appcelerator/alloy
Merge branch 'master' of github.com:appcelerator/alloy
Merge branch 'master' of github.com:appcelerator/alloy
bump version to 1.3.0, fix changelog and readme for stable version