Fix travis build

[isuPatches]

close #77
close #80

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (2.x@74442f7). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff           @@
##             2.x      #79   +/-   ##
======================================
  Coverage       ?   83.79%           
  Complexity     ?      239           
======================================
  Files          ?       14           
  Lines          ?      790           
  Branches       ?      200           
======================================
  Hits           ?      662           
  Misses         ?       39           
  Partials       ?       89

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