Fix bug that caused <fo:external-graphic src="url()"/>

to appear in the .fo output and caused the error
"SEVERE: Image not available. URI: . " to appear
on the console during builds.

Change-Id: I766cf6a8574ca34e66668894606310cd46bc4ee8
Support Google Analytics params on apiref page

enableGoogleAnalytics (default 1, set to 0 to disable)
googleAnalyticsId (default=UA-17511903-1)
googleAnalyticsDomain (default=.openstack.org)

Change-Id: Ife9b41be47b17acedd9886326d5f09a21f221244
Merge "Fix bug that caused <fo:external-graphic src="url()"/>"