Update to astropy-helpers v0.4rc3
Change to correct astropy_helpers commit (0.4rc4.dev)
Update ah_bootstrap for new astropy-helpers
Update astropy_helpers to include cython api docs fix
Replace print() with astropy log.warn()
Replace log.warn() with warnings.warn()
Merge pull request #110 from larrybradley/null_aper

Replace print() with astropy log.warn()
Move overlap functions in geometry package
Adding __init__.py for geometry subpackage
Change aperture.py to use geometry sub-package
Removing duplicate functions
Place for geometry docs
Adding more docs to circular_overlap_grid
Adding more docs to elliptical_overlap_grid
Adding __all__