Change ex05's binary name to ex05
Create mass-spring based double pendulum (5.1)
Merge remote-tracking branch 'marc/master'

Conflicts:
	ex05/main.cpp
Merge remote-tracking branch 'marc/master'
Polished the LaTeX document a little bit
Reset damping to zero for stable simulation
Comments
Merge remote-tracking branch 'marc/master'
Experimental drawing with Bullet's demo-GLDebugDrawer
Enable debug draw mode!
Make dominoes larger, apply force to the first one
Mouse movements are allowed again