Added Django 1.7 support. Dropped Django 1.5 support (1.4 LTE is still supported)
Added Django 1.7 support. Dropped Django 1.5 support (1.4 LTE is still supported)

albedoweb/django-treebeard,velfimov/django-treebeard,albedoweb/django-treebeard,velfimov/django-treebeard,velfimov/django-treebeard,albedoweb/django-treebeard,velfimov/django-treebeard,albedoweb/django-treebeard