Doc init.
Updates license year.
Cleans README for now.
Adds INSTALL procdeure in separate info file.
Updates ignore file.
Adds sphinx doctest extension.
Changes default sphinx theme.
Adds docs shortcuts for indexing.
Adds doctest setup procedure to illustrate nuage api through real tests.
Adds nuage api doc first shot.
Updates doc index.
Updates tests requirements.
Fixes bad upload_to path.
Adds url property as expected by rest-framework.
Avoids all() retrieval just in case.
Replaces rest-framework upload view with more understandable and explicit one.
Adds url field to item serializer.
Adds missing MEDIA settings.
Adds default rest-framework JSON renderer to settings.
Removes unused settings.