Listview: Change of plan... bring back class ui-btn for listview buttons.

The absence of the button class made it impossible to do theme inheritance with CSS because of selector specificity issues.
Button: width auto for inline button elements was gone.
No bold font for labels in static list items.
Fieldcontain: No separator when fieldcontainer is a list item.
Theme: Swatch A dark, swatch B light, removed temp swatches C-E. Checkbox/radio style. Fixed icon shadow selector. Textinput color and text-shadow inherit.
Listview: body instead of new ui-fill-x theme class for static list items.

Removed label font-weight setting that was added for static field container list items: body class doesn't set font-weight bold.
Slider: If no box-shadow the input should get a border.
Demos: Added theming test page.
Correction icon shadow class of dialog close button and listview split button.
Theme: Made search input inherit font color and text-shadow too.
Listview: Form buttons inside a static LI shouldn't get listview button styles.
Listview: position ui-li-aside absolute.

Note: this means that developers have to adjust padding right on the list item, based on the aside content width.
Listview: headings and paragraphs style tweaks.
Fieldcontain: Float instead of inline-block so we can make this work without JS.
Listview: Some small changes because we use class ui-li anymore but still add class ui-btn.
remove url ref
Theme: Added selectors for pure CSS theme inheritance.
Listview: theme inheritance.
Listview: Removed nested listview option headerTheme.
Listview: Removed unnecessary fallbacks. Split button icon option has a default and can't be set to false.