Is lossless video the way to go?

Changing the ffmpeg command to lossless video. Maybe we can afterwards
just extract the frames of the lossless video as TIFFs.
ReadCamera updated to save lossless video

After lots of reading into lossless video with ffmpeg, it seems that
the script is now able to save such a video from the webcam and then
convert it to TIFF slices in a second step. Lots of testing still
needed, especially regarding exposure time and the like.
Pep8 this thing!
Try to make this work on SL6

Once the progress report is done I'm switching to Ubuntu 12.04 FFS!
Resolved merge conflict