Prep for release v1.2.0

[WardBrian]

Submission Checklist

• Run unit tests
• Declare copyright holder and open-source license: see below

Summary

See #690. This is PR is assuming we go down the "issue as many warnings as possible for a version" branch before releasing a 2.0

Copyright and Licensing

Please list the copyright holder for the work you are submitting (this will be you or your assignee, such as a university or company):

Simons Foundation

By submitting this pull request, the copyright holder is agreeing to license the submitted work under the following licenses:

• Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)

[codecov-commenter]

Codecov Report

Merging #691 (8ae8cc4) into develop (e6489e4) will increase coverage by 0.17%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #691      +/-   ##
===========================================
+ Coverage    79.61%   79.78%   +0.17%     
===========================================
  Files           50       75      +25     
  Lines         7590    11439    +3849     
===========================================
+ Hits          6043     9127    +3084     
- Misses        1547     2312     +765     

see 35 files with indirect coverage changes

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[WardBrian]

@mitzimorris I think we should try to do 1.2.0 early next week at this point

[mitzimorris]

do we have a docs example for Pathfinder? I could do this today.

[WardBrian]

No, a new example notebook would be great!

[WardBrian]

@mitzimorris do you have time to review this week? It would be great to release 1.2 with Pathfinder included

[mitzimorris]

LGTM! thanks for the cleanup