Minor fix to FFT_DEBUG line
(#389)
Get rid of sprintf
(#389)
Clean up some of the residual stuff in the RealGalaxy constructor that isn't needed anymore.
(#389)
Add unit tests for pad_image, which currently fail.
(#389)
Simplify the logic about pad_image in InterpolatedImage somewhat, and fix some bugs like that pad_image was sometimes overwritten.
(#389)
Make InterpolatedImage work if pad_image is larger than pad_factor size
(#389)
Have SBInterpolatedImage sum flux over original bounds rather than odd-sized square.  This allows us to remove an inconsistency in how the pad_image bounds are calculated.  (And simplify this calculation significantly.)
(#389)
Merge branch '#389' of github.com:GalSim-developers/GalSim into #389