Restore texture api
Make `demo` the root directory for `npm start`.

URLs in the script/HTML don't resolve properly when running
from `localhost:8080/demo`.
Fixed issue with changing block back to grass (inner array)
Merge pull request #9 from MRdNk/block_selection_fix

Block selection fix
Merge pull request #7 from hughsk/fix/npm-start

Make `demo` the root directory for `npm start`.
Merge pull request #6 from shama/textureapi

Restore texture api: loadTextures and applyTextures
0.3.0 - restore texture loading api
homage to the creators
Merge pull request #11 from shama/maxstack

homage to the creators
use collide-3d-tilemap for player->terrain collisions
Merge pull request #12 from chrisdickinson/master

Use `collide-3d-tilemap` for collisions
mess with collision velocity
0.3.1 - new collision
Fix ref to THREE in UpdatePlayerPhysics
Merge pull request #13 from shama/playerfix

Fix ref to THREE in UpdatePlayerPhysics
0.3.2 - fix typo
0.3.3 - fix undeletable block and make physics updates server friendly
Allow for custom block materials

Based on the changes made in shama/voxel-texture#4, this enables
two additional parameters for the game constructor: `materialType`
and `materialParams`, which allow you to specify the default
materials to use and alter their behaviour.
Updating README
More readme clarification