First pass on updating demos for 1.4.
Merge branch 'master' into demos-update
Demos: Loader: Removing empty demo.
Content: Re-named to pagecontainer Fixes #6423 - Rename content widget to pagecontainer
Pagecontainer: move widget into its own file Fixes #6425 - move pagecontainer widget into its own file
Tabs: add css file with rule to fix ie scroll bug Fixes #6411 - Tabs: add CSS file and set position relative
Fixedtoolbar: allow toolbar to dynamicly be set to fixed Fixes #6394 - Dynamically setting the Toolbar to a "fixed" Mode doesn't work anymore with 1.4
Pagecontainer: Code standards, wrapping long lines, and moving regex to the outer IIFE.
Fixed min jQuery version
Autogrow: Listen to the various you-have-become-visible events triggered by the various framework widgets and resize the textarea synchronously. Fixes #6365, fixes #509.
Textinput: Do not call _setOptions from _create. Fixes #6430.

Instantiation performance:
<input type="text"></input> : http://jsperf.com/textinput-setoptions
<textarea></textarea>       : http://jsperf.com/textinput-setoptions/2
Textinput: Wrap long lines.
Unit tests: Textinput: Make sure the focus class is toggled on whatever the widget() method for textinput returns.
Textinput: Add focus class to and remove focus class from this.widget() to make sure we act on the wrapper when there is a wrapper. Fixes #6415.
init: Disable mouse events the hard way based also on the presence of ui-state-disabled.
Navigation: When deciding whether to remove the active link class, exclude buttons that have ui-state-disabled as well.
Button: Toggle class ui-state-disabled in response to the value of the "disabled" option, and add ui-state-disabled during init instead of ui-disabled.
Checkboxradio: Set class ui-state-disabled in response to the value of the "disabled" option.
Custom select: Include .ui-state-disabled in the selector for inactive items.
Slider: Use class ui-state-disabled for indicating the disabled state rather than the deprecated ui-disabled.