Add filtering option for segment properties
Renamed some SegmentProperties parameters
Fix total variance when background-subtracted data is negative
Enable nitpicky mode for docs
Enable intersphinx
Allow filter_kernel to be astropy Kernel; remove filter_fwhm parameter
Allow use of astropy Kernels in segmentation
Add tests for filtering in segmentation
Add tests for filtering in detect_sources
Update segmenation docs
Return aperture positions as single-dimensional columns (#141)
Update test for aperture columns
Update docs for aperture columns
Fix center_input column for sky apertures
Rename aperture_photometry column outputs
Add make_cutout method in SegmentProperties
Allow aperture positions to be a 2xN array
Fix failures
Merge pull request #187 from astrofrog/nitpicky

Enable nitpicky mode for docs
Merge pull request #182 from larrybradley/coord-columns

Return pixel positions as single-dimensional columns