Log Message:
Update to 3.1.1

Upstream changes:
Moodle 3.1.1 release notes

Releases > Moodle 3.1.1 release notes

Release date: 11 July, 2016

Here is the full list of fixed issues in 3.1.1.

Highlights

    MDL-41922 - Completed quizzes no longer appear in the Course overview block \ 
for students
    MDL-54165 - Allow to hide the document preview in assignment grading interface
    MDL-41945 - Do not overwrite submission with an empty filearea when several \ 
team members edit the same assignment
    MDL-49852 - Mark assignment as completed for all students in the team when \ 
one student from the team has made a submission
    MDL-29905 - Fixed the bug when deleting empty quiz category was showing an \ 
error that it has questions
    MDL-46721 - Assignment blind marking: participant number in the notification \ 
email matches the number on the submission
    MDL-45427 - Database activity: When creating a template clicking on the tags \ 
should add it to the textarea when Atto editor is used
    MDL-35104 - Allow to change username of a user registered under LDAP \ 
authentication method
    MDL-51806 - Workshop: allow to save edited settings when using comma as a \ 
decimal separator
    MDL-43887 - Fixed bug when handling optional date/time custom user profile \ 
field with date range starting later than 1970
    MDL-35987 - Do not abort restore process in case of multichoice question \ 
error 'Backup error: invalid input syntax for integer: ""'

Fixes and improvements

    MDL-55020 - Fixed bug when installing plugin downloaded from github repository
    MDL-54909 - Show different background from page when annotating PDF
    MDL-53111 - Allow to unmark completion criterion 'Require end reached'
    MDL-37138 - When clicking a URL in chat, it should open in a new window or tab
    MDL-54997 - Activity completion for a competency should be attached to \ 
course competency and not the learning plan competency
    MDL-54934 - Accessibility enhancements: Indicate phase name/form name on the \ 
Workshop title

Security issues

A number of security related issues were resolved. Details of these issues will \ 
be released after a period of approximately one week to allow system \ 
administrators to safely update to the latest version.
For developers

    MDL-53019 - PHP 5.6.5 or higher is required for development on master branch