Introduce a simple EarthLocation class, subclassed from CartesianPoints
Includes erfa gc2gd so that one can transform XYZ to geodetic
Use location exclusively, deprecating lon and lat (and removing height)
Move conversion of u, v, to "km" to inside the call to erfa
Insert available ellipoids in docstrings by hand
(formatting seems not possible for class methods in python2)
Correct examples in documentation
Move EarthLocation to astropy.coordinates
Correction to time documentation problem from rebase
Correct path in time.__doc__, and add entry to CHANGES.rst
Let EarthLocation use structured array; update erfa, time, tests
Tests for EarthLocation
Further tests, correction of test for view for slicing
Use fake np.isclose for numpy<1.7
Add explicit test of passing in EarthLocation; doc(string) updates
Rephrase entry in CHANGES.rst
fix typo in lat deprecation notice
Merge pull request #1928 from mhvk/time-location

EarthLocation class for Time