[livecoding] Add LiveCoding arena to examples gallery

This is to speed up the development of new UI controls,
I'm sure you'll like it :)

[button] Replace dirty hack with a better, more reliable one

[styling] Add ToolBarStyle and its corresponding theme object

[styles] Added ToolButtonStyle

Added support for C++ theming components

This commit imports work done for having C++ based
theming, exporting a C++ Theme singleton object,
and C++ object for each component, starting with
the button.

It also includes the new theming system, using JSON,
and a tool to generate new components based on a
description file.

[textfield] Textfield styling

[components] basic Slider and ProgressBar with reusable groove

Hello people :)
I took inspiration from the current qtquickcontrols-tizen repo and
built the repo for the new Nemo components for Glacier UI!
So, first of all, a big thank you to Tomasz Olszak (nickname: tolszak)
and Jarosław_Staniek (nickname: staniek) for their awesome work on
Qt for Tizen!

I changed quite a lot of stuff from qtquickcontrols-tizen repo
in the attempt to improve the overall quality and make things
easier for the people who will contribute to building Glacier
components. I hope I succeeded at that task :)

For those who don't know what Glacier is:
It is the new UI for Nemomobile, you can find some mockup here:
http://play.qwazix.com/grog/?p=344
Yes, it will be as awesome as it looks from the mockups! :D

If you want to be part of the development please do not hesitate
to come talk to me (faenil) at #nemomobile IRC channel (FreeNode server)
and...let's make it happen!

Cheers,
faenil
(Andrea Bernabei)