Updated moodle package fixes security vulnerabilities

Updated moodle package fixes security vulnerabilities: In Moodle before 2.4.8, some password changes on admin pages were being recorded and shown to administrators in the config log report (CVE-2014-0008). In Moodle before 2.4.8, users were able to log in as a user who in a is not in the same group without the permission to see all groups (CVE-2014-0009). In Moodle 2.4.8, custom profile fields and categories were open to deletion without proper session checking, due to two Cross-site Request Forgery(CSRF) vulnerabilities in /user/profile/index.php (CVE-2014-0010).