Basic demo of terrain

First scratch of the background terrain
Small terrain generation update

Changed some parameters of the fractal noise and changed quads to
triangles..
Basic Lighting (diffuse + specular)

Implemented some basis lighting, but still needs to be updates to the
phong model. Other issue is the performance which needs to be optimized.
Furthermore, terrain generation needs some additional improvements (e.g.
less hilly).
..
fixed glew
added project filter for third party libraries
Added timed animation and opponent blimp/zeppelin
Merge pull request #23 from festen/fix-glew

fixed glew
fixed missing EOL
Merge branch 'master' into animate-wheels
Merge pull request #25 from festen/Models

Models
initial attempt at sidescrolling
added new jeep + wheel objects
Merge branch 'animate-wheels' into add-jeep
added environment
changed positions of things
Merge pull request #24 from festen/animate-wheels

Animate wheels
merged environment + wheels
added jeep object (dummy object for now)
controls for jeep (nu een zwart blokje) gemaakt