Add explicit commit statements

[bosborne]

Without this commit no accessions get loaded.

Linux login3.frontera.tacc.utexas.edu 3.10.0-957.27.2.el7.x86_64 #1 SMP Mon Jul 29 17:46:05 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

[codecov-io]

Codecov Report

Merging #86 into master will not change coverage.
The diff coverage is 60.00%.

@@           Coverage Diff           @@
##           master      #86   +/-   ##
=======================================
  Coverage   91.61%   91.61%           
=======================================
  Files          11       11           
  Lines         453      453           
=======================================
  Hits          415      415           
  Misses         38       38           

Impacted Files	Coverage Δ
taxadb/version.py	0.00% <0.00%> (ø)
taxadb/taxid.py	96.66% <75.00%> (ø)

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