Prepare release 0.7.0 (#534)

Prepare release 0.6.0 (#384)

[release/v0.5.x] Prepare release 0.5.0 (#315)

* Prepare release 0.5.0

* update required-status-check

---------

Co-authored-by: Jason Plumb <[email protected]>

Release v0.4.0

Merge pull request #183 from breedx-splk/missing_javadoc

Add missing javadocs on public methods

Merge pull request #124 from breedx-splk/add_descriptions

Add descriptions for OkHttp poms

Merge pull request #71 from breedx-splk/add_propagators

Allow user to customize propagators