added pytest.ini with doctests
added bs4 dependency, skip some tests...
dependencies & imports
notes about vizier tests
bs4 -> beautifulsoup4
vo pip fix; I think vo is only required because of atpy.  Everything
should transition to astropy.table, but there are some incompatibilities
at the moment
astrolib routines aren't on pip =(
another stsci/astrolib package
trivial typo
tried to fix some tests.  Besancon tests are broken, but that's because
of the besancon branch.  I think I need to merge that branch before I
can get anywhere with tests in general
mocks for readthedocs
Changed besancon parsing to use astropy.io.ascii
Fix and format code example in README
Fix errors and warnings pointed out by Eclipse PyDev code analysis

Mostly unused imports and variables, non-standard indentation.
Some real errors.
Should be clear what the problem was from the diff.
Conflicts:

	astroquery/tests/test_besancon.py
	astroquery/tests/test_irsa.py

(resolved: there were just excess imports, afaik)
fixed SIMBAD examples per cdeil's findings
overwrite=True in magpis tests to avoid boring "file already exists"
error
added code-block markup