Add requirements.txt and README instructions for test project setup

Closes #32.

testproj/createsuperuser.py

@@ -1,4 +1,11 @@
+from __future__ import print_function
+
 from django.contrib.auth.models import User
 
-User.objects.filter(username='admin').delete()
-User.objects.create_superuser('admin', 'admin@admin.admin', 'passwordadmin')
+username = 'admin'
+email = 'admin@admin.admin'
+password = 'passwordadmin'
+User.objects.filter(username=username).delete()
+User.objects.create_superuser(username, email, password)
+
+print("Created superuser '%s <%s>' with password '%s'" % (username, email, password))

testproj/requirements.txt

@@ -0,0 +1,3 @@
+drf-yasg[validation]
+Django>=1.11.7
+-r ../requirements/testproj.txt