update HTML + CSS
- styling finished
- added classes "qwerty" to keyboard and "numpad" to calculator
- change "C" and "Delete" to "wis"
- added ".5" button and rearranged numpad layout
Merge branch 'master' of https://github.com/marcobisschop/cti.webatelier.nl

Conflicts:
	CTI.WebAtelier/Views/Home/Vouw/SetDimension.cshtml