Merge pull request #267 from mochi/branch-3.4.0

Update CHANGES and version for v3.4.0

Merge pull request #265 from mochi/branch-v3.3.0

Update CHANGES and version for v3.3.0

Merge pull request #262 from michallepicki/otp-27

Use single quotes around 'maybe' atom for compatibility with OTP 27

Update CHANGES for v3.2.1

Merge pull request #259 from mochi/add-request-is-closed-function

Update CHANGES and version for v3.2.0

Merge pull request #257 from mochi/fix-edoc

Fix rebar edoc and test in CI

Merge pull request #252 from mochi/test-chunked-encoding

Add a test for the chunked encoding fix

fix release date

Merge pull request #241 from mochi/rebar3

Start on rebar3 support

Merge pull request #235 from mochi/automate-hex-publish

Automate hex publish