[FIX] Prevent error log messages from being lost

[DESm1th]

In the dashboard config (https://github.com/TIGRLab/dashboard/blob/master/config/logging.py) I set datman logging to critical to reduce log spam a while back. It turns out that this setting was quietly taking effect on all the scripts in datman/datman always, because config imports part of the dashboard.

So! If we instead set it to warn in datman/__init__.py, we still get less logging when the dashboard is running or imported but we get our error messages back when datman components are imported (even if datman imports the dashboard)

[codecov]

Codecov Report

Merging #295 (8143b47) into master (ef9563a) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #295      +/-   ##
==========================================
+ Coverage   32.15%   32.16%   +0.01%     
==========================================
  Files          60       60              
  Lines        8948     8950       +2     
==========================================
+ Hits         2877     2879       +2     
  Misses       6071     6071              

Impacted Files	Coverage Δ
datman/__init__.py	100.00% <100.00%> (ø)

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[jerdra]

Thanks for updating this Dawn!