Major refinement of the UI to make it more minimal (and hopefully easier to read)

Still work in progress!
Updated the PrimitiveDataListEditor to use ValueListEditorImpl.
Added place holder text for domain and range fields.
Widened domains and ranges for annotation properties.
Created a WebProtege resource bundle.  Switched frame editor styles to use this.
Removed junk css file
Updated change password dialog to use the resource bundle
Tweaked reset password dialog
Updated email address editor to use the resource bundle.
Added resources to authenticate module
Renamed css to style to be more inline with gwt naming.
Updated entity settings dialog
Tidy of new entity specific settings UI
Tweaks to dlg labels (using resource bundle)
Fixed layout of OBO Term Id editor
Fixed layout of OBO Term Definition Editor
Cleaned up OBO Term Synonyms
Made definition editor box expandable
Code for managing the root entity.

This is a temporary stop gap until we get proper browser history
support.
Cleanup to portlet framework setEntity stuff

Made _currentEntity private!
Made setEntity final
Clean up other portlets to make these changes