switched install to astropy 2rc1
address issue #54 - import bs4 in function
import fix (included in the "wrong" branch b/c trivial)
import fix.  Need to find out where the lack-of-import happend... I
suspect branch conflicts
Merge pull request #57 from keflavich/nist-bs4-fix

NIST bs4 import fix + travis fixes: merging despite incomplete travis build because other travis tests (see PR #53) depend on this.