* [Mail/Attachments/Usability] Fixed an issue with purified HTML attachments having their ID attributes stripped when displayed in the browser.
Merge branch '6.3.2' into stable
* [Scheduler/Cron] Fixed an issue with the scheduler where a PHP max_execution_time that can't be overridden could lead to a single job running per /cron request.  This could require several minutes before giving each job a chance to run.  The scheduler will now try to run as many jobs as it can within any time limit.
6.3.2-checkpoint
Merge branch '6.3.2' into stable