Delete old image files from jquery-ui
Update jquery-ui with new theme

Jquery-ui has a new look to its elements. Load background images
and icons correctly. Overwrite background element for accordions
to fix layering bug.
Change look of links.

WIP. Remove lots of superfluous CSS and simplify links so they
may be buttonified in a later commit.
Delete leftover precompiled assets.
Finish link changes

Clean up some more CSS and finalize changes to the look of links.
All links are jQuerified as buttons and refitted to elements. Also
make some minor changes to view titles, table look and other minor
visual changes.