Fix review request fields on Local Sites.
Review Request #6142 — Created July 25, 2014 and submitted
Review request fields were breaking on Local Sites. One case involved an
invalid variable name (review_request.local_site_name), and the other
never passed a LocalSite to local_site_reverse.This fixes both cases.
Tested with a LocalSite. Links worked, and the page didn't break.
Tool: PEP8 Style Checker Processed Files: reviewboard/reviews/builtin_fields.py Tool: Pyflakes Processed Files: reviewboard/reviews/builtin_fields.py