corrected tests and serializer so they can support custom user model, added a readme (to be expanded) with configuration information for the field renkan api will use to render user information
from django.conf.urls import include, url
from django.contrib import admin
from renkanmanager.api.views import RenkanList, RenkanDetail, WorkspaceList, WorkspaceDetail, RevisionList, RevisionDetail
urlpatterns = [
url(r'^renkans/$', RenkanList.as_view(), name='renkan_list'),
url(r'^workspaces/(?P<workspace_guid>[\w-]+)/renkans/$', RenkanList.as_view(), name='renkan_list_workspace'),
url(r'^renkans/(?P<renkan_guid>[\w-]+)/$', RenkanDetail.as_view(), name='renkan_detail'),
url(r'^workspaces/$', WorkspaceList.as_view(), name='workspace_list'),
url(r'^workspaces/(?P<workspace_guid>[\w-]+)/$', WorkspaceDetail.as_view(), name='workspace_detail'),
url(r'^renkans/(?P<renkan_guid>[\w-]+)/revisions/$', RevisionList.as_view(), name='revision_list'),
url(r'^renkans/(?P<renkan_guid>[\w-]+)/revisions/(?P<revision_guid>[\w-]+)/$', RevisionDetail.as_view(), name='revision_detail')
]