Merge pull request php-http#79 from php-http/Nyholm-patch-1

Prepare for 1.6

Prepare for 1.5.0 (php-http#74)

Tagged v1.4.1

Prepare for release (php-http#63)

* Prepare for release

* Update CHANGELOG.md

Fix stream rewind in full formatter

Add new message formatter and fix ResponseBuilder

Prepare release

Update to 1.1.0

Merge pull request php-http#28 from php-http/stable_release

Prepare stable relase

Merge pull request php-http#24 from php-http/require-message-factory-…

…puli

Require message-factory version that has Puli bindings