set version to 1.3.4

[bjarthur]

closes #1551

[codecov-commenter]

Codecov Report

Merging #1555 (0bec09d) into master (8c4bc70) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1555   +/-   ##
=======================================
  Coverage   89.87%   89.87%           
=======================================
  Files          39       39           
  Lines        4999     4999           
=======================================
  Hits         4493     4493           
  Misses        506      506           

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