BUG: fixes #290 and #296

Results are now viewable
I see.  I just thought that it would get around the problem where `media_locale['SITEBASE']` might or might not have a slash prefixed/suffixed, but now that I look at the actual code in amgut/lib/locale_data/american_gut.py and british_gut.py, `media_localte['SITEBASE']` is the empty string in both of them...