working on delta sigma code
Merge remote-tracking branch 'upstream/develop' into develop
Merge remote-tracking branch 'upstream/develop' into develop
small chnages
added sparse distance matrix calculation into tree
adding perpindicular/parallel projected distance calculation.  not sure if PBCs are handled correctly here...
added kdtree code to do jacknife calc, some tests dont work
Merge pull request #33 from duncandc/develop

Develop
Merge pull request #2 from halotools/develop

Develop
Renamed concentration unit
Major changes in cosmology and density profile modules
Merge pull request #35 from BenediktDiemer/develop

Major update to Cosmology and HaloDensityProfile modules
working on jackknife 2pcf calculation
jackknife 2pcf code with threading capability added
small changes
dont remmeber what i changed, something small?
Cosmetic changes to profile_components
Merge pull request #36 from duncandc/develop

Develop
Merged Bene's update to cosmology and Duncan's update to mock_observables.

Merge remote-tracking branch 'upstream/develop' into develop