Merge pull request #1 from dsegna/prototype

Prototype
moving old prototype
engine framework added
moving old prototype
engine framework added
Added Node, Edge and NodeGraph classes to repo.
More work on Node, NodeGraph and Edge classes.
Merge branch 'prototype'

Conflicts:
	index.html
...
conflict resolved
added vertex, node, and edge index buffers
start on xml reading to generate map data
less map generation calls
Merge pull request #2 from dsegna/master

Friday Pull