CSS Framework: Add ui-icon-blank class for an icon with no image. Fixes #9150 - CSS Framework: Add ui-icon-blank.

This essentially reverts 1fe06f03fac30ce76b87eab8c5a9acc72becd587 and the fix for #5659.
Widget: Stop setting ui-state-disabled and aria by default on setting disabled option. 
Fixes #5973 - Resizable: disabled should not have the ui-state-disabled class or aria attribute aria-disabled
Fixes #5974 - Draggable: disabled should not have the ui-state-disabled class or aria attribute aria-disabled
Fixes #6039 - Droppable : disabled should not have ui-state-disabled
Build: Migrate to grunt 0.4. Rename to Gruntfile, upgrade to newer grunt-css and grunt-html, update custom tasks. Drop qunit-junit plugin, not worth the trouble. Update release script to run grunt-prepare after npm-install.
Build: Switch from grunt-css to the equivalent grunt-contrib tasks
Build: Don't call DB's grunt-prepare task, not needed anymore
Build: Update to grunt-contrib-qunit 0.2.0 to get latest PhantomJS
Build: Fix the key for the 'all' subtask for compare_size. Stills needs a new version of grunt-compare-size to actuall work
Upgrade to grunt-git-authors 1.2.0.
Updated AUTHORS.txt.
Updated mailmap.
Sortable: Only animate along the specified axis when reverting. Fixes #7415 - Sortable: Incorrect revert animation with axis: 'y'.
Grunt: remove base theme from release cdn
Revert "Widget: Stop setting ui-state-disabled and aria by default on setting disabled option." This needs to wait for a major release.

This reverts commit 4d67f4f34908a50ef88f95df4103ee001b777e45.
Updating the master version to 1.10.3pre.
Widget: Stop setting ui-state-disabled and aria by default on setting disabled option.
Fixes #5973 - Resizable: disabled should not have the ui-state-disabled class or aria attribute aria-disabled
Fixes #5974 - Draggable: disabled should not have the ui-state-disabled class or aria attribute aria-disabled
Fixes #6039 - Droppable: disabled should not have ui-state-disabled

This reverts commit 23771d38ba9d2663f6db0243c8e992dc7ff6844a.
Sortable Tests: Add tests for axis option and recent axis option bugs.
Dialog: Removed deprecated position handling. Fixes #8825 - Dialog: Remove array and string notations for position option.
Accordion: Remove deprecated content property in create event. Fixes #8999 - Accordion: Remove content property from create event.
Datepicker: Don't use .zIndex(); implement the logic locally.
Core: Deprecated .zIndex(). Fixes #9061 - Core: Deprecate .zIndex().