major modification ! ucf was off
small bug in blanking signal
small modification
Merge pull request #1 from lixf/master

Added software directory for logipi and led matrix
Merge pull request #2 from lixf/master

bug fix in gif. added cat demo. starting python game.
divided matrix control into two blocks. Changed color management (starting with MSB). Added a generic parameter (bits_per_color). Added a generic parameter (nb_panels, untested).
major bug corrected, exposure time is now decorelated from transfer time. Will require to play with exposure step for large display.
modified to handheld 4 matrix