Streamline the build process

Instead of having several build script, each a little different, this
expands the main build script to handle all of our current use cases.
Merge pull request #30 from tangrams/iwillig/streamline-build

Streamline the build process
add vertex data create test
added a couple tests for GLVertexData
Merge branch 'master' into flex_vertex

Conflicts:
	package.json