Provide default implementations in AbstractCoordinateProvider
Add home position for WorldInHandNavigation
Merge branch 'master' of github.com:hpicgs/glow
start on gpu-particles demo
add force field and particle pos initialization
* add image3D to texture
Transform feedback glue code for gpu-particles example (refs #28)
render gpu-particles
Merge branch 'master' of https://github.com/hpicgs/glow

Conflicts:
	examples/gpu-particles/main.cpp
start on gpu-particles compute shader
continue on compute gpu-particles
Continue gpu-particles example (refs #26)
Fix for Program info log
add little more structure to gpu-particles
Merge branch 'master' of https://github.com/hpicgs/glow.git
use arrays instead of vectors for vel and pos data
extend buffer api
continue on compute particles
moep - idle accidentally does not current the context
compute 1M particles
make gpu-particles with compute shader working
* fix reset
* reduce force field size
* fix physics math and add friction and gravity to center
* fix time delta computation