Add a 'leaf' class to menu nodes if they don't have any visible
children.
Fixed a bug for Django 1.3. Give a default to getter in middleware is_non_html function.
Revert "Add a 'leaf' class to menu nodes if they don't have any visible"

This reverts commit 3d4af44bed210be3af5f46e73d2650786fc90059.
Use Django 1.5.1 for travis config and test project
Merge pull request #178 from mbraak/django_1.5.1

Use Django 1.5.1 for travis config and test project
Updated exterenal packages to the latest stable releases.
Extend Fiber's Permission class with a new method, that checks if a user  is allowed to see the Fiber admin interface.
Only evaluate request's user attribute in the middleware if it exists.
Updated changelog to reflect the latest changes.
Bumped version numbers to 0.10.3.
Merge branch 'release/0.10.3'
Bumped version numbers to post-release.
Upgraded Django REST Framework to 2.3.6
Merge branch 'dev'
Bumped version numbers to 0.10.4