Ensure cli closes the bulb out

[bdraco]

Fixes #132

[codecov-commenter]

Codecov Report

Merging #137 (18a83cc) into master (3199eb5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #137   +/-   ##
=======================================
  Coverage   89.39%   89.39%           
=======================================
  Files          12       12           
  Lines         858      858           
=======================================
  Hits          767      767           
  Misses         91       91           

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