js: urlhelper now handles bound link parameters from php, fixes #3791

git-svn-id: svn://develop.studip.de/studip/trunk@27875 c5b85792-5220-0410-ad23-ed5b6b8ad999
schedule js now uses the urlhelper and thus recognizes bound variables, fixes #3727

git-svn-id: svn://develop.studip.de/studip/trunk@27876 c5b85792-5220-0410-ad23-ed5b6b8ad999