Allow person data to be sent through the API

[skuro]

Fixes #53 by allowing a :person map to be passed through the Rollbar API call, without breaking any existing API contract

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.16%. Comparing base (3ecd8cb) to head (bf911de).
⚠️ Report is 31 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #54      +/-   ##
==========================================
- Coverage   92.20%   89.16%   -3.05%     
==========================================
  Files           4        4              
  Lines         231      240       +9     
  Branches        5        5              
==========================================
+ Hits          213      214       +1     
- Misses         13       21       +8     
  Partials        5        5              

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[marcomorain]

Thanks for the PR.

I think we can modify make-rollbar to alwaya take a person argument.

I should probably write more docs now that more folks are using this library :)

[marcomorain]

make-rollbar is only called in one place, and it's private, so we should be able to make the new argument a required parameter, right?