dtypes -> dtype in Tables
units -> unit in irsa_dust
Merge pull request #1 from keflavich/issue284-2-ag

Fix python 3.3 issue
removed "FIXME" comment
Fix various ESO issues.
Merge remote-tracking branch 'origin/issue284-2' into issue284-2
Adjusted remote ESO test to the latest changes.
Merge pull request #340 from keflavich/plurality

Fix dtypes, units -> dtype, unit
Merge branch 'master' of github.com:astropy/astroquery into issue284-2
fix remote tests, and create local versions that fail the same way