Support for Apprise v1.7.x

[caronc]

Description:

Related issue (if applicable): refs n/a

Support Apprise v1.7.x

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• No lint errors (use flake8)
• Tests added

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.87%. Comparing base (4ad2bb1) to head (06275be).
Report is 38 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #159      +/-   ##
==========================================
- Coverage   95.23%   94.87%   -0.37%     
==========================================
  Files           7        7              
  Lines         714      702      -12     
==========================================
- Hits          680      666      -14     
- Misses         34       36       +2     

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