Merge branch 'w27_MDL-26943_m26_localsubplugins' of https://github.com/skodak/moodle
MDL-26943 Add db/subplugins.php to the local plugin readme.txt
MDL-39628 Chat: check mod/chat:chat capability when using daemon.

Thanks to Francois Gauthier for report/fix.
MDL-39088 fix admin/localplugins.php uninstall url
Merge branch 'w27_MDL-40399_m26_msarrayshift' of https://github.com/skodak/moodle
MDL-39570 mod_feedback - Missing privilege check
Merge branch 'MDL-40297' of git://github.com/stronk7/moodle
Merge branch 'MDL-40039-master' of git://github.com/ankitagarwal/moodle
Merge branch 'wip-MDL-40353-master' of git://github.com/marinaglancy/moodle
MDL-40127 Enrolments: Abstracted self_enrolment code so as to be used by webservices
MDL-40127 Enrolments: Added status to instance info and removed displaying of enrolment form with notice

get_enrol_info will return status of enrolment instance, to notify webservice if enrolment is possible or not
If enrolment is not possible then don't show enrolment form
show_enrolme_link will use can_self_enrol to varify if enrolment link should be shown or not.
MDL-40127 Enrolments: Added unit test
MDL-40127 Enrolments: Updated version and update.txt
MDL-34472 phpunit: Make sure a debugging is thrown when get_context_instance() is called
Merge branch 'MDL-40282' of github.com:colchambers/moodle
MDL-40434 calculatedmulti multiple-response questions not randomised
Merge branch 'w27_MDL-40299_m26_textlib' of https://github.com/skodak/moodle
Merge branch 'MDL-40389' of git://github.com/stronk7/moodle
Merge branch 'w27_MDL-40337_m26_rolescleanup' of https://github.com/skodak/moodle
MDL-40439 Merge English strings from the en_fix language pack