Merge branch 'release/0.2.4' into develop
pass the extensions argument to Markdown.markdown()

Markdown has a bunch of extensions for supporting additional markdown features (https://pythonhosted.org/Markdown/extensions/index.html#officially-supported-extensions)
Update README.rst
Remove sqlite db from repo.
Merge pull request #26 from dfeinzeig/develop

Markdown has a bunch of extensions for supporting additional markdown features
Merge branch 'develop' of github.com:klen/django_markdown into develop
Update changelog
Move related settings to application.
Update README>
Update markitup, support extra set
Update version
Merge branch 'release/0.2.5'