Automatically generated installer lang files
Merge branch 'install_master' of https://git.in.moodle.com/amosbot/moodle-install
NOBUG: Fixed SVG browser compatibility
weekly release 2.8dev
MDL-42993 auth: Allow spaces in usernames for external authentication

Only when $CFG->extendedusernamechars is set to true.
Also included 2 trim statements where small issues were found with reading
external usernames in that  were not filtered for trailing whitespaces.
MDL-42993 Authentication: Added in Trim() for external usernames.
MDL-42993 Authentication: No longer filtering spaces in usernames by default.

Causing issues with external authentication we now only filter out space
characters when extendedusernamechars is set to false causing only
a strict subset of usernames to be valid for Moodle.