Fixed origin of Label when changes the style or text
Added listeners for label
Locked the navigation panel in draw and play mode
Merge pull request #900 from gorco/navPanel

Locked the navigation panel in draw and play mode
Added minor improvements in LabelTextEditor
Merge pull request #899 from gorco/labelListener

Label listener
Fixes some editor actions.
Adds OpenApplication action.
Adds ImportProject action.
Adds Platform#getApplicationArguments() method.