Merge pull request #33 from daxslab/0.6

fix pypi-publish action version

Merge pull request #24 from daxslab/version_0.5.0

ADD: new version number (0.5.0)

Update version to 0.4.1

update transports docs with new To address as list

updated version

fix travis issue with branches on deploy

multiple updates (includding API changes)

- Added Email class extending from python message object
- Moved get_json_attachment function to new Email class
- Added 'gzipped' option to get_json_attachment (now can get a gzipped
JSON attachment file)
- Added JSON attachment options to send_email function
- Deprecated send_two_part_email function (will be removed)
- Corrected some typos