added pause menu
added graphics menu
updated Quickie to fix checkbox bug; added checkbox for fullscreen
added fps; lava is now rendered using a repeatable quad; fullscreen is now considered in resolutions
added settings module; code improvements
entities depend on world now for resolution offset calculation; code improvements
settings are now saved to table
shadows can now be disabled/enabled
removed function for calculating resolution offset -> camera should do this
camera is now centered according to the screen resolution; code improvements
code improvements; valid resolution modes are now listed
adde smoke dynamically
Merge pull request #1 from dschneider/features/linux-full-screen

Linux support and resolution/fullscreen support