Merging various tweaks and some new classes

Accumulated from other projects over the months.
Adding new theme Flattery

Flat, simple UI. Powered by less.js.
CSS support for native scrolling

For platforms which support touch scrolling regions (e.g. Tizen, BB10)
and desktop browsers.
Default sizing tweaks
Native scrolling detection and JS tweaks
Document update
Adding default back gesture support

For Tizen, etc. This is more for installed apps than browser apps.
Fix missing CSS animation
Remove CSS transition when slider thumb is being used
Transition tweaks
Cleanup
Doc updates
Updating platform support list

Adding Tizen and updating others
0.5.0 Release notes draft
Adding placeholder support for joInput
Refresh of the kitchen sink app sample
Need docs, but whitespace is a good start
Merge branch 'Pumpkin-Spice'