Corrected Earth radius, rely in only one source
Now all data is hard coded from the PDF. The files
generated from PDAS had the problem of using a different value
for the radius of the Earth than the standard, and therefore
the conversion geometric to geopotential was not correct.
extension of coesa.py and introduction of util.py
minor changes to coesa.py
added test functions for coesa extension to 86 km
Merged commits from Guillu13, see #17
Merge branch 'Gillu13-coesa-extension'
Updated README.rst
Fixed silly failing test b/c typo
Update AUTHORS
Update README.rst
Update AUTHORS
Merge pull request #18 from javierj/patch-1

Added Javier to AUTHORS
Broken link in README.rst

At line number 130
Merge pull request #19 from aeroaks/master

Fixed broken link in README.rst
AUTHORS update