Small drive-by speed tweaks in p1atom::op=
Use THE_INSTANCE in all cases for the element instances; let the class name distinguish.  Easier, e.g., to macro out later.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Allow 'make clean;DEBUG=1 make' to build everything at -g2; 'make clean;make' to go back to -O99
Upping FRAMES_PER_SECOND to 100 seems to improve AEPS..  Not sure if it makes sense though.
Add support for a range of color scales and gradients; with some minimal tests
Use a couple of the new colormaps for sorter and data heat maps
Defend against divide by zero
Defend against divide by zero
Merge pull request #9 from DaveAckley/master

Add stronger colormap support