Merge pull request #8726 from leob2g/Bug_852361_Device_is_shut_down_when_battery_level_become_two_percents

Bug 852361 - [System] Device is shut down when battery level become two percents(cherry picked from commit a7f1e921c67d5d3d4e0afaa06aca79320784e806)
Bug 901512 - [Contacts] Unable to finish the linking process when there has been an error while retrieving the picture of FB contact
Bug 847032 - [email] IMAP only supports initially-SSL encrypted connections, STARTTLS upgrade not supported from unencrypted cleartext. r=asuth a=blocking-b2g=leo+
Conflicts:
	apps/email/js/cards/setup_manual_config.html
	apps/email/js/cards/setup_manual_config.js
	apps/email/js/mail-common.js
	apps/email/style/setup-cards.css
Merge pull request #12229 from asutherland/email-starttls-v1-train

Bug 847032 - [email] IMAP only supports initially-SSL encrypted connections, STARTTLS upgrade not supported from unencrypted cleartext. r=asuth a=blocking-b2g=leo+