Merge pull request #5 from Cloudef/master

Update glhck and give overdraw toggle possibility
new glhck
new key bindings for playing with pandora, no high scores for cheaters
new engineworks.1, add vsync compile flag, pandora specific hacks
Add fullscreen build option
oops.
oops. again.
use glfwGetPrimaryMonitor
centralized configuration of keys, action mapping
fix weapon hcange keys
Smarter sound channel managing
fix pandora keys
remove sound debug prints
use stopAndPlay for asteroid hitsound
Added glfwDefaultWindowHints
new glhck
Use static glhckText object to save a lot of memory
Add glhckMemoryGraph() to title/score world for debugging
Update glhck