Dialog: Capitalize default value for closeText option. Fixes #9500 - Dialog: Capitalize 'close' for closeText option.
Tests: Fixed accidental use of comma instead of semicolon.
Demos/tests: Losslessly recompress PNG/GIF images.
README: Updated build instructions.
Upgrade grunt-contrib-jshint to 0.6.3.
Draggable: Safe activeElement access from iFrames for IE9, prevent window focus changes in IE9+. Fixed #9520 - Draggable: Browser window drops behind other windows in IE9/10
Update AUTHORS.txt.
Widget Bridge: Make the _init method optional. Add tests for both states. Fixes #9543 - Widget bridge: Make _init() optional.
Spinner: Add isValid method. Fixes #9542 - Spinner: Add isValid() method
Widget: Only remove hover and focus classes when disabling, not enabling. Fixes #9558 - Widget: .enable() while already enabled kills ui-state-focus and ui-state-hover.
Menu: Only focus menu after click if focus is on an element within menu. Fixes #9044 - Menu: Autofocus issue with dialog opened from menu widget
Build: Update grunt-compare-size to latest, add it's .sizecache.json to .gitignore
Build: Remove the build task and it's dependencies. Will bring back testing against minified files later.
Spinner: Only format the value when there is one. Fixes #9573 - Spinner: forces a field validation in Firefox before field loses focus or form is submitted
Dialog: Changed the width of the close button. Fixed #9133 - Dialog: Resizing causes close icon to misalign in Firefox.
Dialog: Safe activeElement access.

Fixed #9420 - Dialog: Close causes blur of window in IE9
Fixed #8443 - Dialog: "unspecified error" when using ie9 and iframe
Updated author information.
Gruntfile: Remove project prefix from TestSwarm job name

* Also added a line break to separate the for statement
  from the testswarm chain.
* Passing explicit false instead of empty string as `extra`.
Build: Fixed TestSwarm submission.
Dialog: Switch back to shuffling z-index, but only look at .ui-front siblings.

Fixes #9166 - Dialog: moveToTop implementation resets flash/video/iframe/scroll
Fixes #9364 - Dialog: Click of element with tooltip scrolls the dialog to the top