fix(modal): allow modal.{dismiss,close} to be called again

$modalStack.openWindows.get(modalInstance) is undefined after the first dismiss and throws:
-   TypeError: Cannot read property 'value' of undefined
docs(typeahead): docs for typeahead-append-to-body

Closes #1663
fix(typeahead): correctly handle append to body attribute

Closes #1656
demo(all): fix demo scrolling issues

Fixes #1674
chore(ngVersion): update to 1.2.10
chore(build): use minified version for the demo site

Closes #1682
chore(dependencies): update dev dependencies

Update dev dependencies for which we can simply
bump up a varsion to the latest
feat(carousel): Support swipe for touchscreen devices

use ng-swipe-* directives. If ngTouch is included, it will be used.

Closes #1686
fix(position): remove deprecated body scrollTop and scrollLeft

Fixes #1658
Closes #1677
feat(tooltip): support more positioning options

Closes #1676
fix(demo): Scroll to element on initialization
feat(rating): make widget accessible

 * Support keyboard navigation.
 * Add WAI-ARIA markup.
 * Text representation for screen readers.

Source: http://mindtrove.info/creating-an-accessible-internationalized-dojo-rating-widget/

Closes #1707
refactor(tabs): use optional binding for `active`

Closes #1713
fix(tabs): remove `tabbable` class required for left/right tabs

Closes #1708
feat(progressbar): make widget accessible

 * Add WAI-ARIA markup.

Closes #1717
style(License): update copyright year range
Merge pull request #1731 from gdi2290/patch-1

style(license): update copyright year range
fix(readme) fix typos

Closes #1757
docs(readme): fix typos in readme and contributing guidelines

Closes #1762
fix(alert): add `alert-dismissable` class

Closes #1745