MDL-47883 admin: Fix missing string in the plugin validation
MDL-47968 mod_forum: fixed search form HTML5 validation
MDL-47969 mod_survey: fixed HTML5 validation of index.php
MDL-47917 cachestore_memcached: fixed get_many ordering
MDL-45303 Web Services: forum_get_discussions web service misses group permissions check
MDL-47697 mod_data: Fix group id change when editing.

When a teacher edits an entry in the database module
it would change the group ID to the one that the teacher
currently had selected.

Thanks to Steve Bond for providing a patch.
MDL-47321 iplookup: Prevent guest users from using iplookup
MDL-47190 Ensure badges cannot be awarded without a role

Signed-off-by: Yuliya Bozhko <yuliya.bozhko@totaralms.com>
MDL-47924 mod_lti: Fixing missing sesskey checkings

Also fixing a missing capability checking.
MDL-47965 tag: Enforcing security of tag auto completion
MDL-47927 LTI: Use PARAM_TEXT and p() for returned messages and errors
Merge branch '47917-26' of git://github.com/samhemelryk/moodle into MOODLE_26_STABLE
MDL-48013 calendar: force download of user files
MDL-47868 ws: verify upload areas
Merge branch '47968-26' of git://github.com/samhemelryk/moodle into MOODLE_26_STABLE
Merge branch '47969-26' of git://github.com/samhemelryk/moodle into MOODLE_26_STABLE
Merge branch 'MDL-47883-26-foundlangfile' of git://github.com/mudrd8mz/moodle into MOODLE_26_STABLE