-added basic screen setup
-example with painting screen (left, with image background) and wall
screen (middle)
-press 'c' to change the keystone of the middle screen
Merge pull request #1 from tugelbend/develop

Basic keystone integration
incorporated Raphaels Spraypaint example for demonstration
added missing shader files
bug fix: background wasn't redrawn during calibration
Merge pull request #3 from tugelbend/develop

Develop
- started working on the control menu
- reduced width of window to fit on two screens
- color and width of spray paint now changeable
- added slots to save color settings to the menu
Merge pull request #4 from tugelbend/develop

- started working on the control menu
Merge branch 'refs/heads/develop' into tmp
Libraries directory
Added Libraries