removed public modifier for methods in interface. they are implicitly public, so no need to add it ;-)
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2013-team8
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2013-team8
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2013-team8
remfactored getItem(id)