Do basic file properties after setting file group's cfs root.
removed unused code
Basic cfs file properties can be found and removed (if file is gone)
Some basic functionality for generating red flags is now in place.
Added way to update fits (rather than just do initial generation).
Add crude show view for red flags.
Move some javascript from file_stats.js to dashboard.js (to keep
the convention of using the controller name).
Extract storage overview table into partial.
Fix double use of html id
Add file for dashboard css.