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
MDL-45469 profile: make sure profile fields can be initialised without arguments
MDL-44711 navigation: reverted behat chaneges
Revert "MDL-45606 Unit test fix for MySQL and added a comment about the removed code."

This reverts commit 0f18f3fa6ff3761ca2bdc0f61a2b0ab9c1553ca9.
Revert "MDL-45605 Phpunit: Do not call gc_collect_cycles as part of reset."

This reverts commit c0f29f18d77759fa0fd96a531c2f014e15fd66a3.
Merge branch '44711-25-r3' of git://github.com/samhemelryk/moodle into MOODLE_25_STABLE
Automatically generated installer lang files
Merge branch 'install_25_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_25_STABLE
weekly release 2.5.6+
MDL-45499 admin: fixed error when displaying page settings