rcoo files not copied over when combining data from multiple clean_dirs

[cdfassnacht]

Hi, I'm trying to combine data from multiple epochs and the PAs of the imager was different in the two epochs. Since there are multiple epochs, I use theclean_dirs option when calling the combine function in kai/reduce/data.py. This works, but I got an exception because the different PAs meant that the code was looking for the *.rcoo files. These do not get copied over from the various clean_dirs. The *.coo files do get copied over:
` shutil.copy(source_clean_dir + 'c' + source_file_root + '.coo',
dest_clean_dir + 'c' + dest_file_root + '.coo')

`
but the *.rcoo files don't. It's each to hack the code to add the *.rcoo, but this should probably be fixed in the official version of the code.

All that being said, it is very possible that I just don't understand the multi-epoch, multi-PA combine correctly.

[nsabrams]

Hi! We've fixed the rotation implementation on the dev branch of KAI. I'll leave this issue open for now in case your specific issue hasn't been addressed, but I think it should work now. Feel free to post here if it doesn't and if your issue is fixed, feel free to close the issue.