Merge pull request #1 from isnalla/allan

Allan
Merge pull request #2 from isnalla/allan

Added floor,walls,textures
Merge pull request #3 from isnalla/allan

fixed texture mapping
Parameter revision for box; drawObject drawing reimplentation (could still be revised for general purposes)
Merge pull request #4 from isnalla/texture_tweaks

Parameter revision for box; drawObject drawing reimplentation (could sti...
Merge remote-tracking branch 'origin/master'

Conflicts:
	renderer.js
Transparency implementation using PNG images alpha
Merge pull request #5 from isnalla/texture_tweaks

Transparency implementation using PNG images alpha
Created and placed main and emergency stairs
Merge pull request #6 from isnalla/texture_tweaks

Created and placed main and emergency stairs
Merge remote-tracking branch 'origin/master'

Conflicts:
	renderer.js
- merged with kim
- new features: fog
          changeable light parameters
          F key : freeze camera view
 -stripped unnecessary variables
- merged with kim
- new features: fog
          changeable light parameters
          F key : freeze camera view
 -stripped unnecessary variables