added iptables rules for app server and a if-network-up script to load the rules.
Did not create a handler to load the iptable rules on purpose. Since in production this would lock kill the anisble/vagrant/admin-workstation ssh connection to the host before the install was finished
fixed typo
added tags back to iptables
Merge remote-tracking branch 'david/ansible-tags' into ansible-app-iptables-non-dev-env

Conflicts:
	install_files/ansible-base/roles/ansible-secureDrop-AppHardening/tasks/main.yml
added copying and loading the sysctl.conf.
Add ssh group to created users