MDL-45371 behat: Tests for block glossary_random
MDL-45294 behat: Supporting an aria-label as a block ref
MDL-45294 behat: Updating block references to aria label value

Also improving moodle selectors xpath expressions
readability.
MDL-45320 behat: Step definitions for blocks
MDL-45320 block_html: behat tests
MDL-45320 behat: change to block selector
Merge branch 'wip-MDL-45371-m26' of git://github.com/marinaglancy/moodle into MOODLE_26_STABLE
MDL-45469 profile: make sure profile fields can be initialised without arguments
MDL-44711 course: fixed navigation expansion in course tests
Automatically generated installer lang files
Merge branch 'install_26_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_26_STABLE
weekly release 2.6.3+
MDL-45499 admin: fixed error when displaying page settings