Use apache for tls-proxy ssl termination

Stud is now abandonware (see https://github.com/bumptech/stud) and is
not packaged in xenial. Lets use Apache for SSL termination since its
there already.

Change-Id: Ifcba410f5969521e8b3d30f02795541c1661f83a
diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index b1b5230..1810099 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -460,7 +460,7 @@
 
     # Start proxy if enabled
     if is_service_enabled tls-proxy; then
-        start_tls_proxy '*' $Q_PORT $Q_HOST $Q_PORT_INT &
+        start_tls_proxy neutron '*' $Q_PORT $Q_HOST $Q_PORT_INT
     fi
 }