added function declarations to pal.pyx
Merge pull request #1 from danielsf/add_python_wraps_140129

Added function declarations to pal.pyx

aopqk, prenut, refco, and refz
Switch from SOFA to ERFA

Required updating PAL to v0.5.0 and ERFA is v1.1.0.

One test was modified because palObs now returns additional
telescopes.
Add more of the PAL constants to the API
Alphabetize properly
Add new refraction routines and associated tests

Added: atmdsp, refcoq, refro and refv.
Add planet/element interfaces

Added el2ue, pertel, pertue, planel, planet, plante, plantu,
pv2el, pv2ue, rdplan, ue2el, ue2pv
More consistent numpy testing
Add palEvp and palEpv
Update with documentation info
Add a change log
Prepare for v1.1 release
More tweaks to setup.py
Explicitly include GPL v3 text
Be consistent in GPL version text
Changed the urls to https links
Merge pull request #3 from schandra/master

Changed the urls to https links

These are more portable and relative links will not work for repository forks.
Sync ERFA with v1.1.1
Update PAL to include palAltaz
Build palAltaz