Delete Nitrogen_Dean_and_Bozzelli.py

This library exists twice. Recent changes have been made to Nitrogen_Dean_and_Bozelli.py (Bozzelli with only one z). Renaming of the other file to correct Bozzelli will follow.
Rename Nitrogen_Dean_and_Bozelli.py to Nitrogen_Dean_and_Bozzelli.py
Merge remote-tracking branch 'GreenGroup/master'