Plugin config bug fix

[petereon]

This PR addresses the #330

Changes:

• set_defaults_from_config now returns the config instead of string location of the config file
• test command picks up plugin config before dropping the rest of config and passes it to config object
• del statement instead of .pop method to be more explicit about the intent

[codecov]

Codecov Report

Merging #331 (91cd2a7) into master (7ac8b63) will increase coverage by 0.33%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #331      +/-   ##
==========================================
+ Coverage   84.59%   84.92%   +0.33%     
==========================================
  Files          21       21              
  Lines        1843     1844       +1     
  Branches      283      283              
==========================================
+ Hits         1559     1566       +7     
+ Misses        240      236       -4     
+ Partials       44       42       -2     

Impacted Files	Coverage Δ
ward/_config.py	96.10% <100.00%> (+5.19%)	⬆️
ward/_run.py	85.58% <100.00%> (+0.13%)	⬆️
ward/_utilities.py	90.00% <0.00%> (+6.66%)	⬆️

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[petereon]

Hi @darrenburns, do you think this will work? Apologies for impatience, I sort of depend on it for ward_coverage extension.

[darrenburns]

@petereon I'll try and have a look on Sunday

[darrenburns]

Looks good to me, thanks!

[petereon]

Thank you!