OZP-10: Migrate displaying a dashboard.
> OZP-269: Perform code review

1. Ensured copyright notice is on all scss files.
2. Added OWF favicon.
3. Added background to IE.
4. Abstracted out method for constraining widgets inside an element on resize since it is required by DashboardInstance and DesktopPane.
5. Set strict jshint mode on ResizableWidget and fixed some resize bugs.
6. Abstrated resize handler to LayoutPane.
7. Implemented tooltip on widget header's widget name.
8. Modified display of widget header name span to only take up the size of the text, allowing the rest of the header to be reserved for double-clicking to maximize/restore and collapse/expand, instead of opening the name editor.
OZP-10: Migrate displaying a dashboard.
> OZP-269: Perform code review

1. Fix tests for IE global leak error.