Work on TileEngine

The tile engine is now outsourced into the TileEngine.js
The images now have a pure alphachannel tile.
Canvas resolution changed to 1200x840
TODO:
The compete map is drawn every loop this needs to be fixed.
It has to be updated on changes only.
Merge pull request #14 from Jimaine/master

merge my css
Merge pull request #15 from Thorgar/master

Get new Master
Merge pull request #16 from Thorgar/normansBranch

Merge pull request #15 from Thorgar/master
Merge pull request #18 from Jimaine/master

Fix Merge
Merge pull request #14 from Thorgar/master

new master