- reorganized shader manager such that can assign parameter to shader
programs.
- modified fog shader such that it supports textures
- modified phong shader such that it supports textures (but has still a
problem with objects with no textures.)
...
Merge branch 'master' of https://github.com/advancedrendering/project

Conflicts:
	ExtraBees/src/scenegraph/CampusModel.java