Add Ruby port
C++ version is also compilable with GCC 4.6
Change default art to RAYS
Change default resolution to 768x768
Update readme
Merge pull request #10 from zaeleus/rubyrays

Add Ruby port
doc: add link to trello board
doc: overhaul
doc: move the tracker link down
go: get things nicely lined up in the centre
go: correct the pattern
go: bring in concept of megapixels and aspect ration
go: remove a empty column from art and align things properly again
go: do not lock main goroutine
go: change how parameters are passed, and now have the ability to display timing information from inside the program (can be averaged over a couple of runs too)
doc: update doc for go based on recent changes
Merge pull request #12 from tkalbitz/upstream-gcc

C++ version is also compilable with GCC 4.6
Merge remote-tracking branch 'upstream/master'