Fixed toolbar: Apply workarounds from _makeFixed().
Demos: Intro: Show non-deprecated example for filterable.
Demos: Pages: Update link hrefs to reflect new directory structure.
Demos: jqm-contents: Typo.
Demos: External toolbar: Ajax -> AJAX.
Demos: Navigation: More copy editing and link-fixing.
Demos: changed Buttons page title to Button markup
Listview: fixed incorrect border radius property.
Demos: footer should not be positioned absolute on C-grade browsers.
Demos: changed file names. Fixes #6522.
Demos: Navigation PHP redirect example: Update for 1.4.0.
Demos: View source: Reposition popup when any collapsible is collapsed, or when the first collapsible is expanded.
Panel: Animate class is added before opening the panel.
pagecontainer: load() should be able to deal with a missing options hash.
Demos: Use and document $( ":mobile-pagecontainer" ).pagecontainer( "change"/"load" ) instead of $.mobile.change/loadPage().
Panel: Reduced selectors.

We only add position classes to the wrapper and fixed toolbars in case
of reveal and push panels, and not when it's a overlay panel. So there
is no need to target reveal and push.
Demos: Updated responsive panel CSS example.
Demos: Updated toolbar themes.
Demos: Use the method to dynamically disable/enable form widgets. Fixes #6528.
Applied changes made in default theme to classic theme.