doc(card) - updated usage description
chore(doc) - updated Doc Home title
fix(toast): add z-index

Closes #173.
feat(toast): make properly responsive

Closes #170.
feat(fab-button): make it move up for toast

Closes #170
test(toast): add test for rootElement class
demo(toast): remove  option
feat(radio,checkbox): add aria expectations and warnings
docs(radio,checkbox): clarify ariaLabel default value
fix($expectAria): fix incorrect display when no default value is given
docs(): fix github and github edit urls being relative
docs(): remove hack for sidenav scroll, no longer needed
docs: polish
chore(travis): add flowdock notifications
chore(bower): go to 1.3.0-beta.18 to fix some tests
fix(toast): default to bottom-left
feat(button): expect 'aria-label' attribute
refactor(button): place all contents inside inner `button`/`a` element
feat(dialog): add border if overflow
chore(): update release script