feat(client): add auth:whoami

This adds a new command to the client which will display the current
user who is logged into the deis controller.
test(integration): add auth:whoami test
chore(controller): remove unused django-allauth app
fix(auth): use djangorestframework login/logout views
Merge pull request #2140 from bacongobbler/whoami

feat(client): add auth:whoami
Merge pull request #2024 from mboersma/remove-allauth

chore(controller): remove unused django-allauth app
fix(logger): kill temporary build container in "make build"

The two-stage Dockerfile build process leaves a temporary
container running after logger builds. This changes the Makefile
to catch and kill the temporary logger-build container.