Isomorphic game board test
First complete board setup

* Robot cube with arrow pointing to its front side
* left walls and top walls
* floor tiles
* goal classes for positions (to be placed on floor tiles)
Remove unused floor.top
Make robot truly 3d
Better alignment of the board
Center board
Favor CSS classes over custom HTML 5 tags

Since React cannot cope with custom HTML 5 tags 
yet :(
Use isomorphic board for games
Add optional perspective to board
Merge pull request #2 from bforma/feature/css-based-isomorphic-board

Feature/css based isomorphic board