update copyright
Renaming things; style
More readable code.  Fix old issues with limited memory scenario
style
more consistent naming
Collect data on the number of boxes at each level and the size of the HF interaction lists.
make code more readable
fix comments
Fill in geometry at run-time
clean up
remove old tests
Do the geometry partition at run-time.
add NPW option
Bring in dendro stuff for sorting
Single for translation operators
Migrate in some sorting
Piece out the implementation HF-M2M
Piece out LF L2L
piece out M2M
Piece out LF M2M