Notification of string changes

Author: Sam Hemelryk
mod-assignment MDL-19803 Fixed up a couple of minor deprecated calls


http://git.moodle.org/gw?p=moodle.git;a=commit;h=14f001a993adb47f3db13cd741f66b417b7cf38a
http://github.com/moodle/moodle/commit/14f001a993adb47f3db13cd741f66b417b7cf38a

+ 2.0 en [errornosubmissions,mod_assignment]