Add text based patterns

Signed-off-by: Paul Brook <paul@nowt.org>
Rework 8x8 cube mapping

Signed-off-by: Paul Brook <paul@nowt.org>
Swap buffers after clear on shutdown

Signed-off-by: Paul Brook <paul@nowt.org>
Set brightness

Signed-off-by: Paul Brook <paul@nowt.org>
Merge pull request #1 from iMartyn/master

Moar demos
Remove hack for mis-wired cube

Signed-off-by: Paul Brook <paul@nowt.org>
Fix wonky demo code

Signed-off-by: Paul Brook <paul@nowt.org>
Run indefinitely if only one pattern

Signed-off-by: Paul Brook <paul@nowt.org>
Better scroller message

Signed-off-by: Paul Brook <paul@nowt.org>
Plasma worm

Signed-off-by: Paul Brook <paul@nowt.org>