Remove flaky test and update README

[thomasrockhu]

Using x64 because of appveyor/ci#3502

[codecov]

Codecov Report

Merging #200 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #200   +/-   ##
=======================================
  Coverage   88.64%   88.64%           
=======================================
  Files          23       23           
  Lines         370      370           
  Branches       91       91           
=======================================
  Hits          328      328           
  Misses         34       34           
  Partials        8        8           

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