FIX: Cleanup annoying isolated dots in reportlets + new tests

[oesteban]

No description provided.

[codecov]

Codecov Report

Merging #168 (7e0b626) into master (11fe581) will increase coverage by 0.17%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #168      +/-   ##
==========================================
+ Coverage   96.30%   96.48%   +0.17%     
==========================================
  Files          19       19              
  Lines        1353     1450      +97     
  Branches      175      218      +43     
==========================================
+ Hits         1303     1399      +96     
- Misses         27       29       +2     
+ Partials       23       22       -1     

Flag	Coverage Δ
travis	93.86% <100.00%> (+5.03%)	⬆️
unittests	96.06% <100.00%> (-0.08%)	⬇️

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Impacted Files	Coverage Δ
sdcflows/interfaces/utils.py	100.00% <ø> (ø)
sdcflows/interfaces/reportlets.py	89.83% <100.00%> (+8.47%)	⬆️
sdcflows/viz/utils.py	98.03% <100.00%> (+2.03%)	⬆️
sdcflows/workflows/fit/syn.py	100.00% <100.00%> (ø)
sdcflows/utils/wrangler.py	94.49% <0.00%> (-5.51%)	⬇️
sdcflows/fieldmaps.py	99.10% <0.00%> (-0.30%)	⬇️

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