start kernel symmetry
kernel symmetry: working baseline
re-enable kernel symmetry step 1
get rid of Slice.Slice
remove Slice._len
cleanup slice
convolution cleanup
update TODO
rename Slicer->Quantity
doc/.gitignore
reduce *Mesh usage
start making averages consistent
remove last volume()
component with proper average
more average cleanup
mv inregion.go oneregion.go and fix average
more average tests
vOneRegion / sOneRegion
not sure if that's a good idea.
fix average crash on nil geometry