add-comment
rotation below -99 didn't display, just froze
drop decimal places for rot/trans in UI
nonsense
submit mapped data to filter, not raw
gcc too much a piece of work often

Issue: #81
Merge commit 'f78b96a' into unstable

* commit 'f78b96a':
  gcc too much a piece of work often
  submit mapped data to filter, not raw
  nonsense
  drop decimal places for rot/trans in UI
  rotation below -99 didn't display, just froze
  add-comment
fix options singleton duplicating itself on win32
fix typo breaking red only CCD mode
timer: start() has to return elapsed before exiting

Reported-by: @brokenhands
Issue: #79
Breakage-of: pt-tracker
nix PT opening zeroth camera in case >0th camera used

Reported-by: @brokenhands
Issue: #79
Breakage-of: pt-tracker
nix video frame layout at startup or else no feed from tracker

Reported-by: @brokenhands
Issue: #79
Breakage-of: pt-tracker
fix ypr when translation-compensating
remove description and scale-curve
scale gain without need for a third user option

Submitted-by: @dbaarda
Issue: #85
show delta/noise alphas in UI for debugging