0.0.5

MAST Query

Fixed a bug that was preventing guidestar data from being downloaded. Use the "guidestar" keyword to download guidestar data along with science data. Also added the "guidestar_only_data" keyword, which will remove science data and download only guidestar data. (#55)

Tests

Added some initial regression tests to be sure the behavior with and without the config file is consistent. (#53)