fix(setup-node.sh): create database role for controller unit tests

This change also updates the VirtualBox and vagrant packages to
match those we are currently using in testing.
docs(disable-registration): adds documentation on how to disable user registration
docs(docs/managing_deis/platform_logging): change example to prefer tcp/tls

Prefer tcp+tls over udp for log forwarding b/c of long lines.
fix(router): fix deploy Makefile target
Merge pull request #2787 from mboersma/update-test-setup

fix(setup-node.sh): create database role for controller unit tests
Merge pull request #2792 from noblesamurai/doco_update_udp_to_tcp

docs(docs/managing_deis/platform_logging): change example to prefer tcp
Merge pull request #2791 from carmstrong/fix-router_deploy

fix(router): fix deploy Makefile target
chore(client+controller): update python requests lib to 2.5.0