- Show the summary data again, but nicely formatted
- Repository owner and clone url can be set in the gitweb section of .git/config
- Add the url to the model and template

One can use gitweb with the following apache config to have
parameter-less urls:

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !\.git/(HEAD|refs|info|objects)
RewriteRule ^.*\.git.*$ /gitweb.cgi%{REQUEST_URI} [PT]

We use this on perl5.git.perl.org, some other sites do this too. We'd
like these URLs to be supported by Gitalist for backwards compatibility.
This commit adds those urls to the relevant Controllers as redirects to
their new location.