Shorten academia.edu urls & clean up researchgate

[GlazerMann]

Simpler Regex and case insensitive
I even included a test

[codecov]

Codecov Report

Merging #564 into master will decrease coverage by 2.94%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #564      +/-   ##
============================================
- Coverage      76.5%   73.56%   -2.95%     
- Complexity     1481     1482       +1     
============================================
  Files             9        9              
  Lines          2567     2569       +2     
============================================
- Hits           1964     1890      -74     
- Misses          603      679      +76

Impacted Files	Coverage Δ	Complexity Δ
Template.php	80.39% <100%> (-4.03%)	1330 <0> (+1)

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