CLOUDSTACK-2909: Fix for ; and : keys for IE and chrome.
CLOUDSTACK-4189: [UI] In multi zone setup, dedicating a single zone to a domain, shows other zones dedicated as well
add doc for kvm cpu model

Signed-off-by: Wei Zhou <w.zhou@leaseweb.com>
(cherry picked from commit 8d53887cec514e1eeed899e4d6b6465b02aa39a3)