Disable SGCT ESC terminate handling and implement a method that optionally waits before closing the application (closing #120)
- ESC key is now bound to a call to "openspace.toggleShutdown()" that will initiate a shutdown in 3 seconds unless ESC is pressed again
- The countdown timer is set in the openspace.cfg
- Base renderer resolution on draw buffer resolution instead of window res
- Obtain number of aa samples from config file, instead of hard coding to
eight samples
Alexander Bock