Update show template

Now render using fieldsets with more than one field per line and fileldsets titles like for edit
Allow multiple fieldset with 'NONE' label
Enable complex bundle namespace to load routes

When we have a prefix before the shortnamespace eg MyCompagny\Backend\UserBundle we can't load the routes
Parsing the *Bundle.php file we find now the good namespace to load
Enable to load namespace_prefix with \
Fix route for scopes
Remove var_dump
Fix RoutingLoaderTest
Merge pull request #513 from cedriclombardot/show-template

Update show template
Merge pull request #510 from cedriclombardot/fix-routing-loader

Enable complex bundle namespace to load routes