Bumped python version and changed selenium endpoint in the tests

[quarckster]

No description provided.

[codecov]

Codecov Report

Merging #219 (a6dae21) into master (871f6a8) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head a6dae21 differs from pull request most recent head d2839c6. Consider uploading reports for the commit d2839c6 to get more accurate results

@@            Coverage Diff             @@
##           master     #219      +/-   ##
==========================================
+ Coverage   86.42%   86.44%   +0.01%     
==========================================
  Files          18       18              
  Lines        2556     2559       +3     
==========================================
+ Hits         2209     2212       +3     
  Misses        347      347              

Flag	Coverage Δ
unittests	86.44% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/widgetastic/widget/image.py	69.23% <0.00%> (-5.77%)	⬇️
src/widgetastic/browser.py	75.88% <0.00%> (+0.04%)	⬆️
src/widgetastic/widget/table.py	89.01% <0.00%> (+0.16%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 871f6a8...d2839c6. Read the comment docs.