Dialog cleanup
`this` is the `scope`.
Merge branch 'master' into dialog-cleanup
Simplify save method calling
Merge branch 'master' into dialog-cleanup
Fix scope issues while saving/updating
Merge branch 'dialog-cleanup' of github.com:fh-koeln/LevelPad into dialog-cleanup
Merge branch 'master' into dialog-cleanup
Merge pull request #41 from fh-koeln/dialog-cleanup

Dialog cleanup