Merge pull request #21 from michelgrootjans/master

Cleanup of Ruby-RSpec language
added c++11 switch to starting makefile for C++
enlarged the traffic-light counts on the dashboard page so they're easier to read from projector
show first 6 characters of the id (simpler start)
added red,amber,green counts to main test page to match dashboard display
simplified dialog messages for empty/duff id
tweaked resume 4x4 grid appearance
home page review button now leads to dialog and ok button on that opens dashboard - this avoids the problem of the browser blocking the dashboard as a popup
tweaked the basics dialog now only first 6 chars of id is shown
refactored traffic-light summary duplication
css traffic-light size tweaks
dashboard appearance improvement
cancel from setup bug removed; more info in review dialog
put review dialog text into panel to match appearance of text elsewhere
how shortcuts for moving forwards and backwards through files in main test page
diff heartbeat now works again
readme tweaks to reflect recent changes
new donation - thank you Wojciech Kozlowski
adding home page donation link to blog entry showing kids at CoderDojo@Bray
When the test creates new files, they now appear correctly with ajax.