We now support user preferences to select how dates and times should be rendered. Right now we only offer 3 basic date layouts, and 2 time layouts (12 hour or 24 hour clock). Bug: issue 698 Change-Id: Ic8d70964566898bc9f9f8782ac684c1707f36864 Signed-off-by: Shawn O. Pearce <sop@google.com>