Fix several review fields on non-Local Sites.
Fix several review fields on non-Local Sites.

Some of the earlier fixes for user and diff links on Local Sites broke
non-Local Sites. This didn't cause the review request pages to break,
but it did cause the fields to disappear. This fixes them by making use
of the new 'local_site=' parameter on local_site_reverse().

Reviewed at https://reviews.reviewboard.org/r/6320/

davidt/reviewboard,chipx86/reviewboard,chipx86/reviewboard,beol/reviewboard,davidt/reviewboard,brennie/reviewboard,bkochendorfer/reviewboard,sgallagher/reviewboard,reviewboard/reviewboard,chipx86/reviewboard,reviewboard/reviewboard,KnowNo/reviewboard,brennie/reviewboard,brennie/reviewboard,bkochendorfer/reviewboard,KnowNo/reviewboard,chipx86/reviewboard,davidt/reviewboard,custode/reviewboard,sgallagher/reviewboard,reviewboard/reviewboard,custode/reviewboard,beol/reviewboard,reviewboard/reviewboard,bkochendorfer/reviewboard,custode/reviewboard,davidt/reviewboard,bkochendorfer/reviewboard,sgallagher/reviewboard,brennie/reviewboard,KnowNo/reviewboard,beol/reviewboard,custode/reviewboard,KnowNo/reviewboard,sgallagher/reviewboard,beol/reviewboard