added Logback logger
allow to dynamically change Logback logging level
Update README.md
removed unnecessary test
Changed Java compilation source and target level to 1.6
Fixed "ClassNotFoundException: ProgramContext not found!" error
Open Icon Editor from Tools menu if started with JWS
Let m2e not complain about properties-maven-plugin
Merge branch 'master' into 2013_LoggingImprovements
migrating to proper logger
migrating..
finished logger stuff
Merge branch 'master' into java8support