support for Donut chart graphs. Improve how graphs are automatically reordered by not depending on index numbers
Merge branch 'master' of github.com:Hidendra/mcstats.org
changes for hiphop testing (it wasn't great), and lower php settings
many more graph generators
combine System Arch and System Cores graphs onto the same row
fix array index warnings
misc changes. fix system cores graph, place java version / operating system graphs beside each other
cumulative changes for the redesign :)  also moves most of the files in public_html to private_html

P.S due to licensing on the site's CSS I am not able to provide unminified versions. Sorry!

Also this commit removes the PHP reporting backend. It does not support R6 and it is not going to ever be used again officially.