v 0.3.5 Bug fixes and improvements

- fail gracefully when an error response doesn't include JSON error
  fields
- webmention HTTP request tweaks
- use requests.apparent_encoding
handle relative endpoints. fully qualify them with the target scheme and host.
error handling bug fix
Merge pull request #4 from snarfed/relative_endpoints

handle relative endpoints. fully qualify them with the target scheme and host
Merge pull request #5 from snarfed/error_handling

error handling bug fix
Merge branch 'master' of github.com:vrypan/webmention-tools
Vesion 0.3.6: Bug fixes and improvements

- fail gracefully when an error response doesn't include JSON error
  fields
- webmention HTTP request tweaks
- use requests.apparent_encoding
- handle relative endpoints. fully qualify them with the target scheme
  and host