Merge pull request #21003 from jimporter/email-as-download-body-failure

Bug 1009422 - [email/Activesync/hotmail] Apparent change in server behav...
Merge pull request #20828 from jrburke/bug1025727-email-cronsync-failsafe

Bug 1025727 - [email/cronysync] Failsafe abort/window.close after failed cronsync(s) r=mcav