initial upload

Fixing up initial commit author#
added switch statement for multiple commands
Added README
renamed index.php to istat.php
Added important message regarding this repo
Fixed up graph object - it no longer crashes Status Board
Added RAM hourly history and major changes to graph objects for nicer output.
Removed some unneccessary graph data (CPU: nice / RAM: free)
Changed some README details
Fixed up colours to be more consistent with iStat.
Added total RAM check for Y-axis max value
Added some usage details for the README.
Fixed up some Markdown in the README.
Fixed up some more Markdown in the README.
Fixed up some more Markdown in the README.
Select every 30th row to give us an even spread throughout the last 24 hours.
Changed README a little
Added daily load average.
Tested script on standard OS X 10.8.3 - working fine, removed OS X server requirement from README.
Added RAM by the hour.