Switch HUD update rate from sec to 1/sec
Consequently use float notation
Merge branch 'master' into hudrate

Conflicts:
	src/ui/hud.cpp
Merge pull request #69 from voxelinc/hudrate

Switch HUD update rate from sec to 1/sec
Merge branch 'master' of https://github.com/voxelinc/voxellancer into physics_tests

Conflicts:
	src/ui/hud.h