Replace minor version in URLs with an arbitrary cache version

Bug 1384481

Change-Id: Ia34c51ccae2859e3860896a5fa9fda5a4cbff1dc
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
Hide the minor version in RSS feeds

Bug 1384481

Change-Id: If8e9fb096b73e71438ad57e036e46aebfbf472e7