partview overhaul
-fixed crashing with rapid key press repeats and color channels.
-lowered  CPU usage by  removing constant  timer loop
  now it only updates and runs the timer loops when interaction is happening, either keypress or mouse movement
-removed  'a' and 'c'  keypress events
-replaced them with  colorFrom and alphaFrom right click menus that read the whole list of PP attrs so color and alpha are now user selectable
only thing that is still not quite working is the brightness controls and sometimes there will be double frame jumps forward or back.
Merge branch 'redpawfx' into partio4Maya