Drop support pre-1.8 and modernize CI

[oxinabox]

OK, I am trying to breath a little life back into this package.

I know we have waiting PRs that need 1.8 and at this point keeping 0.7 and 1.0 working isn't worth it. We can later try and get this working on older version as demanded. But otherwise people wanting pre-1.8 can just use version 1.4.x

I will merge this when CI passes

[codecov-commenter]

Codecov Report

Merging #104 (9c6300b) into master (831bbd2) will increase coverage by 17.34%. The diff coverage is n/a.

@@             Coverage Diff             @@
##           master     #104       +/-   ##
===========================================
+ Coverage   73.39%   90.73%   +17.34%     
===========================================
  Files           1        1               
  Lines         233      313       +80     
===========================================
+ Hits          171      284      +113     
+ Misses         62       29       -33     

see 1 file with indirect coverage changes

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