trailing & is not allowed in script queries
Vizier: must pass multiple option selections separately; comma-separated
is invalid
fix tests
Add another remote test
vizier: mask instead of raising exceptions for bad VOtables (they're
unpredictable - we don't want to raise exceptions if some of the data is
invalid... though we do want to at least warn folks... hmm)
safer version: WARN keyword added for invalid votables
regression test for invalid tables
Merge pull request #352 from keflavich/simbad_minor

Trailing & not allowed in script queries
Merge pull request #353 from keflavich/vizier_keyword_fix

Some fixes to Vizier
.travis: sphinx upgrade
use wheels for sphinx 1.2.1
docs: cleanup coordinates import (from astropy import coordinates) and
use 0.4-style coordinate declaration.
Also, added a new index of services by type
NED is also an archive service
docs: rst, coordinate import cleanup
docs: title level consistency
docs: remove some trailing spaces and reorg ogle's title styles
docs: headings in __init__ files are apparently necessary in *some* but
not all cases
docs for classes - NED (I think this may have been the cause of the
inconsistent title error before - classes need docstrings)
docs: conf.py -> mock out bs4