TST: 2.7 build blowing up

[jreback]

https://travis-ci.org/pydata/pandas/jobs/29348880

started with this merge: #7678

[jreback]

@jorisvandenbossche mysteriously it looks ok now. last doc build failed for some odd reason (rerunning though).....

maybe travis is having issues.....

[jreback]

hmm...now everything seems ok. very weird. ok...i guess false alarm.

[jorisvandenbossche]

strange, but good it is ok now