Previously the page base was set on router load time. This meant that
a base url needed to be set before the router code was evaluated by
the browser. Now the router javascript can run and the base url will
be set when the router is initialized instead of when the router code
is initially executed. This small timing tweak allows for the
polygerrit code to be loaded into the browser and change the base url
before starting the polygerrit-ui.
Change-Id: Ie89b5491877b7ab4ef285cba3babc4ee0c9087f9
44478c039c