Add breadcrumbMessageFromAction option to handle a message of breadcrumb

[xnimorz]

Hello @captbaritone !

Sometimes it's necessary to use the different message of action breadcrumb instead of action.type. In my project I implemented it, using Raven.dataCallback option. But I have to filter if the breadcrumb is action. It would be great if raven-for-redux have this feature. So I added breadcrumbMessageFromAction that allows defining a function to change a message of action. It could be very useful if we want to handle in Sentry custom actions.

[codecov-io]

Codecov Report

Merging #98 into master will not change coverage. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #98   +/-   ##
=====================================
  Coverage     100%   100%           
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  Files           1      1           
  Lines          26     28    +2     
  Branches       10     11    +1     
=====================================
+ Hits           26     28    +2

Impacted Files	Coverage Δ
index.js	100% <100%> (ø)	:arrow_up:

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[captbaritone]

Great idea! A few wording note, but otherwise looks good. If you can make those few changes, I can cut a release later today.

[xnimorz]

@captbaritone thank you for the review! I added fixes in the separated commit 7ee6daf

[captbaritone]

Thanks! I’ll reply here when I cut the release.

[captbaritone]

Just cut 1.4.0 https://github.com/captbaritone/raven-for-redux/commit/fbe0f54355701a261362838d11f27bc155097b88 which includes this feature. Thanks again for the pull request.