Configure bash completion

Add bash completion rules to the /etc/bash_completion.d from the
 cinder, neutron, keystone, nova and nova-manage.

This is very fast operation and makes the cli usage easier.

Change-Id: Icdcdaf55d58efaaa1afe25fd55f088bf7dc8b3f1
diff --git a/lib/neutron b/lib/neutron
index 31876de..c46003b 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -382,6 +382,7 @@
 function install_neutronclient() {
     git_clone $NEUTRONCLIENT_REPO $NEUTRONCLIENT_DIR $NEUTRONCLIENT_BRANCH
     setup_develop $NEUTRONCLIENT_DIR
+    sudo install -D -m 0644 -o $STACK_USER {$NEUTRONCLIENT_DIR/tools/,/etc/bash_completion.d/}neutron.bash_completion
 }
 
 # install_neutron_agent_packages() - Collect source and prepare