Now subclassable
Now appends theme class to designerWrapper instead of designer
Now uses BorderWidthEditor for border, margin and padding
Fixes managing url issues
clears isDirty if there is no dataSet
Adds a class to the grid so that we can subclass it with the themer
updateIsDirty now clears dirty if _initializing is true
Fixes issues with coloring the editor
More subclassing support
Merge branch 'master' of https://github.com/SpringSource/wavemaker