v3.3.3

[hhellyer]

Update the version number to 3.3.3 prior to release.

[codecov-io]

Codecov Report

Merging #113 into master will decrease coverage by 0.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #113      +/-   ##
==========================================
- Coverage    60.6%   59.74%   -0.87%     
==========================================
  Files           2        2              
  Lines         231      231              
==========================================
- Hits          140      138       -2     
- Misses         91       93       +2

Impacted Files	Coverage Δ
lib/appmetrics-dash.js	59.56% <0%> (-0.87%)	⬇️

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