chore(build): add argv.mode with closure option
chore(build): for modular component build, dont add -core to css file
chore(): update demos to angular 1.3.2, make bower depend on 1.3.x
chore(build): make bower release script update bower-material dependencies
chore(release): make bower release script copy the dependencies
fix(ripple): fix ripple sometimes appearing when the element is disabled
chore(build): fix bower dependency version
test(button): adds test to confirm issue button attributes are working properly

This confirms that #616 is resolved.
chore(travis): fix travis build release flags
Merge branch 'master' into custom
refactor(mdRadioButton): more direct access of tabindex attr
Merge branch 'mlibby-md-radio-group-tabindex' into custom