Throwing IllegalArgumentException in WaitForSikuliImageAction if the picture is not found on screen
Bumped selenate version to 0.2.22
* bumped selenate version to 0.2.22
Merge branch 'feature-ff-screens' of github.com:presjednik/selenate into feature-ff-screens

Conflicts:
	code/Server/src/main/scala/net/selenate/server/sessions/actions/WaitForSikuliImageAction.scala
Merge pull request #21 from presjednik/feature-ff-screens

Selenate version 0.2.22