* Use $CFG->debugdeveloper instead of debugging('', DEBUG_DEVELOPER).
* Use set_debugging(DEBUG_xxx) when changing debugging level for current request.
* Function moveto_module() does not modify $mod argument and instead now returns the new module visibility value.
+* Use behat_selectors::get_allowed_text_selectors() and behat_selectors::get_allowed_selectors() instead of
+ behat_command::$allowedtextselectors and behat_command::$allowedselectors
DEPRECATIONS:
Various previously deprecated functions have now been altered to throw DEBUG_DEVELOPER debugging notices