Version 1.6.0

New functionality and features

• Add Akamai token generator

Other Changes

• Add max_results=500 to api.resources invocation in tests
• Double encode , and / in text layers
• Handle empty CloudinaryField values. Fixes #81, Related to #82
• Revert to in-memory database for tests
• Support passing parameters to both setup.py test and django-admin.py test
• Set DJANGO_SETTINGS_MODULE only in Django tests
• Test for string_types instead of str.
• Use disable_warning() in network tests.