Footer Background and Benchmarks

The footer now has a background colour and benchmarks (time it takes to
load a page) is being commented in HTML.

Signed-off-by: Adam Brenner <aebrenne@uci.edu>
Filesystem Usage Function

Usage by filesystem shows a summary of each filesystem which includes
Size and File Count.

A more detailed break down is avaiable per filesystem that shows all
users who have files on that filesystem and their usage.

Future work may include export to PDF or draw logarithm graphs of the
average file size.

Signed-off-by: Adam Brenner <aebrenne@uci.edu>
User Totals in Detailed Break Down

A feature from 66961fb back ported to groups, now shows how many users
are on a specific filesystem from a group. This information is shown
with the rest of the totals per filesystem for each group.

Signed-off-by: Adam Brenner <aebrenne@uci.edu>