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memoise edge_end2 now performance is good
parallel thing compiles now
linear interpolation works; view presets
interpolate and various sizes build
allow pausing updates
new energy functions
can use original model now
ports to new c++ in lenny
new topology; check that graph and stuff makes sense
allow turn off hidden line removal
better rotations
keystrokes
minimisation works but initial solution is bust
rename project to view; do not clean best