Fix failing tests as a result of new readr#50

Merged

pralitp merged 2 commits intomasterfrom fix-readr-1.3.1

Feb 9, 2019

+6

Commits on Feb 5, 2019

Update compdata and fix test for new version of readr column types
pralitp
committed

Commits on Feb 6, 2019

Skip tests affected by readr bug dealing with empty connections
pralitp
committed