MDL-40842 output: fixed fatal error display bug - thanks Marina for spotting it!
MDL-40842 behat: Reverting to backtrace catchall as xdebug warnings were being missed
MDL-40842 behat: fixed a typo
MDL-25500 Generic plugin based locking framework for cron (and more).
MDL-25502: Added "black magic" task allocator for cron
MDL-25503: Add step to cron to run all scheduled tasks
MDL-25504 cron: Convert cleanups to scheduled tasks
MDL-25504: More tasks refactored out of cron.
MDL-25504 cron: Last cron tasks converted to scheduled tasks.
MDL-25504 cron: Fix for name space error
MDL-25504 cron: Lots of namespace fixes