Store message ID in send().
Bring demo up to django 1.6
Version 4.2, add in support for tracking opens
Add POSTMARK_TRACK_CHANGES setting to core and Django backend
Update 0.4.2 changelogs to reference POSTMARK_TRACK_OPENS
Merge pull request #36 from danxshap/content_subtype_issue

Don't require content_subtype to be set to "html"
Update changelog to reflect removal of content_subtype requirement in Django backend
Add back in license file, more PyPi compatible
Merge/improve #29
Merge branch 'jdavisp3-message-id'
Remove print statement
0.4.3, add Dave Peticolas as contributor
Various improvement, based on language builtins and PEP8, fix unreachable code with contextlib.
move import
Provide fix for text based proxy changes

This catches an error whereby django 1.5+'s ugettext_lazy strings aren't properly converted (for subjects, for instance).
Merge pull request #41 from justinabrahms/patch-1

Provide fix for text based proxy changes
Merge pull request #38 from Stranger6667/master

Various improvements and fix unreachable code
Merge pull request #34 from catskul/master

Bring demo up to django 1.6
Update CONTRIBUTORS.md
Update README.md