Some style fixes to the Exfoliation theme

Made the check command table not look terrible. Added color
difference for statusEven and statusOdd in perfdata table. Made
the row headers look better and more like the Thruk theme since I
think they look good. Fixed table headers to be center aligned so
perfdata arrow doesn't look dumb.
Style fixes to Exfoliation theme

Make table headers look the same on every page. Fix the look and feel
of the Tactical Overview page.
Style fixes to Exfoliation theme

Keep table headers the same on Performance Info page
Merge pull request #301 from awiddersheim/fix_exfoliation_theme

Some style fixes to the Exfoliation theme