simplified logic
added a parameter to control the interval between two detection attempts
properly release resources after the canvas is hidden
remove a constructor
updated canvas styling capabilities
added canvas styling example code
some cleanup
add transpancy example
disable keyboard tests that failed in maven
change canvas
add get the four corners of a screen region
add create custom screen region on a given screen id
add copy the content of a screen region
add an example on how to use copy region feature
add show canvas on the region to be copied
updated to sikuli-core 1.1.2
Merge remote-tracking branch 'origin/master'
Merge branch 'copyRegion' of https://github.com/kalharbi/sikuli-api

Conflicts:
	src/main/java/org/sikuli/api/robot/desktop/DesktopKeyboard.java