Initial work on compute_neighbors
Add new files (should have been in previous commit)
Merge branch 'master' into neighbors
I think this is working now
you need to add the files
Merge pull request #7 from SimTk/neighbors

Neighbors
added filter
added filter
updated reference test
Merge pull request #625 from cxhernandez/neighbors

added filter
fix typo
Update neighbors.pyx
test for no neighbors
test for no neighbors
fixed comments
Merge pull request #627 from cxhernandez/neighbors

neighbors
merge neighbors