Added more pyds9 interface and started implementing complete output file
Corrected inconsistent naming convention error cat_img -> cat and key_img -> key
Fixed some remaining index errors after attempt to switch to pandas
Corrected some errors with the pyds9 command notation
Made some more changes to slitcatmatch.py and it now works.
Now encapsulating zspec comments in " "

This should make them more generic to parse.