testing pywcs library
fix for differences in pywcs functionality
testing astropy.wcs
removed unnecessary import
bugfix in astropy.wcs call
bugfix in astropy.wcs return type handling
astropy.wcs running slow: attempting speedup
astropy.wcs slow, switching back to pywcs
removed wcslib.py, using pywcs instead; also changed get_bcd_list() to only save entries to bcd_list.json which have non-empty lists for 'files' key
switched README to README.md