Datepicker: Remove unnecessary mouseover trigger

Fixes #5816
Closes gh-974
Tooltip demo: Reword dialog description for clarity

Closes gh-1233
Selectmenu: Add new production selection demo

Closes gh-1230
Tooltip: Don't use `rgba()` for solid colors in video player demo

Fixes a display issue in IE8.
Menu: Use item.outerHeight() in _scrollIntoView

Fixes #9991
Build: Generate pre-releases the same way as stable releases

Fixes #9998
All: Fix typos

Closes gh-1237
CONTRIBUTING: Fix typo
Build: Replace @VERSION in release tags

Fixes #10006
Closes gh-1239
Build: Validate number of generated manifests

Closes gh-1241
Autocomplete: Search if the user retypes the same value

Fixes #7434
Closes gh-1238
Build: Add manifest entry for selectmenu

Closes gh-1240
Build: Fix manifest dependencies

Clone bower dependencies instead of reusing and modifying the same object
multiple times.
Menu: Vertically center icons. Fix menu item wiggle and clearing in IE8

Fixes #9995
Closes gh-1235
Widget: Remove misleading comment
Authors: Update
Tabs: Move `aria-expanded` from active panel to active tab

Fixes #9622
Closes gh-1251
README: Remove content that exists on the contribute site
Build: Update DB version for release script
Tests: Add widget option

Allows running qunit tests for a single widget

Closes gh-1254