Just wanted to report an issue with RC7, sorry if it's already known but I haven't seen it reported elsewhere.
If an admin user creates a child user without the "Use all/manage templates" permission (let's say "Create survey" and "Manage labels" are the only permissions granted). When that child user tries to create a survey by clicking the plus icon, an error page is returned. The beginning of the error page reads:
include(Templates_rights_model.php): failed to open stream: No such file or directory
My install is limesurvey200RC7-build120721