Bug 823894 - [USSD/MMI] Home button is not properly handled while MMI screen is shown.
Merge pull request #7668 from gtorodelvalle/dialer-bug-823894-resending-last-ussd-mmi-message-after-closing

Bug 823894 - [USSD/MMI] Home button is not properly handled while MMI screen is shown (r=fcampo)