fixed login url
Merge pull request #162 from jdnc/some-more-cleanups

Fix UKIDSS login URL
SIMBAD test fix: astropy 1311 changed output formatting.  Now 5d, 5.0d,
5d0m0s, etc all yield "5d"
Merge pull request #161 from keflavich/simbad-testfix

Trivial SIMBAD test fix