Merge branch 'master' into 'master'

Fixing some argument bugs in pymc3.py.

See merge request !299
2 jobs for <span class="ref-name">255-discrepancy-in-definitions-of-matched-filter-snr</span> in 10 minutes and 54 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #226221
python-2

00:09:29

passed #226222
python-3

00:10:53

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