Version 2.7.0 -- 1509 in Review Week

Important:

fsg now suggests using node versions >=4.0.0. (a92198d)

New features:

• OS notifications now display when some gulp build tasks fail. (37fe9b7)

Bugs/Issues:

• No more seed task in gulpfile.
• Some style tweaks (thanks @seanjohnite)
• gulp-sass fixed and new engine suggested (thanks @tashoecraft)
• Bootstrap madness is contained for now -- generated code now has angular-ui-boostrap and angular-animate. (thanks @ariverox)