Bump noVNC to 1.1.0

v1.1.0 was released over a year ago now so move to it ahead of 1.2.0.

Change-Id: I13c5638f320b18c4f6f945528352471d2bb31313
diff --git a/stackrc b/stackrc
index 17641c3..70007a9 100644
--- a/stackrc
+++ b/stackrc
@@ -600,7 +600,7 @@
 
 # a websockets/html5 or flash powered VNC console for vm instances
 NOVNC_REPO=${NOVNC_REPO:-https://github.com/novnc/noVNC.git}
-NOVNC_BRANCH=${NOVNC_BRANCH:-v1.0.0}
+NOVNC_BRANCH=${NOVNC_BRANCH:-v1.1.0}
 
 # a websockets/html5 or flash powered SPICE console for vm instances
 SPICE_REPO=${SPICE_REPO:-http://anongit.freedesktop.org/git/spice/spice-html5.git}