Adopted astropy file formats for spectrum and py_wind, and updated py_read_output.py
Merge pull request #123 from jhmatthews/astropy_formats

Adopted astropy file formats for spectrum and py_wind, and updated py_read_output.py
edited loops in lucy mazzali to not go off end of arrays
Merge branch 'dev' of https://github.com/agnwinds/python into advanced_mode