bump version to 0.3.1-alpha
Renamed namespace from test_helpers to test-helpers
Deal with payload as binary not UTF-8 when publish
Merge pull request #9 from baz44/rename_test_helpers

Renamed namespace from test_helpers to test-helpers
Added binary payload tests and bumped to 0.3.2-alpha
Merge pull request #10 from baz44/allow_binary

Allow binary
type hints
Merge pull request #11 from martintrojer/master

typehints