Fix SkyEllipticalAperture's theta
Adding more tests for the SkyAperture classes
Removing TODO comments
Adding hdu return option to make_4gaussinas_image
adding hdu/wcs/wcsheader options to make_gaussian_sources
Updating tests to use generated rather than remote data
Updating test
Adding docs note about using the central pixel scale
Fixing docstring of SkyCircularAnnulus
scale and angle in to_pixel() method of SkyApertures are fixed to be the center of the image
Adding full remote test to compare results with catalogue values
Adding frame to central_pos get the valid pixel scale
fixing remote test
adding SkyRectangularAnnulus tests
adding test for aperture pixel position validation
fixing test failures of SkyRectangularAnnulus
adding mode to skycoord_to_pixel
adding mode to skycoord_to_pixel in wcs_helpers.skycoord_to_pixel_scale_angle
brake long lines [skip ci]
Merge pull request #203 from bsipocz/aper_fix_skyelliptical

Add more tests for aperture_core, fix theta for SkyElliptical classes