[svnpenn]

github.com/svnpenn/dotfiles/commit/efec

Support unauthenticated sites

Some sites, e.g. http://veevr.com/embed/hqn8v_CWP do not require authentication.
If that be the case just pass "--auth ''".

Also fix is included for clearing cache. plugin-container.exe needs to be
stopped before clearing the cache.