continuous integration fix?

[elbeejay]

@amoodie not sure why, but flipping the test installation from pip install -e . to python setup.py install seems to work... is this a change we're willing to make?

[codecov[bot]]

Codecov Report

Merging #271 (cc727f5) into develop (ddb54cd) will decrease coverage by 0.04%. The diff coverage is 78.96%.

@@             Coverage Diff             @@
##           develop     #271      +/-   ##
===========================================
- Coverage    78.86%   78.82%   -0.04%     
===========================================
  Files           12       12              
  Lines         2616     2616              
===========================================
- Hits          2063     2062       -1     
- Misses         553      554       +1     

Impacted Files	Coverage Δ
pyDeltaRCM/sed_tools.py	44.12% <49.15%> (ø)
pyDeltaRCM/water_tools.py	54.54% <49.18%> (ø)
pyDeltaRCM/model.py	89.44% <78.64%> (ø)
pyDeltaRCM/preprocessor.py	83.73% <79.06%> (-0.25%)	:arrow_down:
pyDeltaRCM/debug_tools.py	79.41% <82.05%> (ø)
pyDeltaRCM/shared_tools.py	76.41% <84.61%> (ø)
pyDeltaRCM/init_tools.py	97.18% <96.17%> (ø)
pyDeltaRCM/iteration_tools.py	98.00% <97.29%> (ø)
pyDeltaRCM/hook_tools.py	98.30% <100.00%> (ø)