Automatically generated installer lang files
MDL-37707 mod_assign: Prevent user from changing grouping in team submissions
MDL-47408 user: Add checking before adding blog's link.

Checking enableblogs  and bloglevel, userid, constant  BLOG_USER_LEVEL.
Merge branch 'MDL-47408-26' of https://github.com/DmitryNefedov/moodle into MOODLE_26_STABLE
Merge branch 'MDL-37707-26-fixup' of https://github.com/FMCorz/moodle into MOODLE_26_STABLE
Merge branch 'install_26_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_26_STABLE
weekly release 2.6.5+