tell sudo to keep the current environment so that things like perlbrew can be used with krang

git-svn-id: http://svn.krangcms.com/trunk/krang@6900 689d98c0-9023-0410-9c0b-f79783857903
setting id_meth tmpl_var so that we can set the call to Krang.Help.set() based on the object type

git-svn-id: http://svn.krangcms.com/trunk/krang@6901 689d98c0-9023-0410-9c0b-f79783857903