rewrite using three.js using simple shader for now
* load shader from seperate file / url
* add GLSLShaderMaterial
* add colorbrewer colorschemes via textures
some cleanup and initial setup for gui controlls
add colorbrewer schema file, and a script to generate textures from it
* move client code into app folder
* include generated colorshceme textures in repo
* other minor changes
Merge branch 'master' of github.com:hansent/weblas into hobu-postgres
more serverish stuff