Bug 1034633 - [Messages] subtle padding issues while manipulating the subject. r=julien
Bug 1019783 - Always display IMEI codes for all SIM slots r=Rik
Bug 1028190 - Allow MockContact properties to be None
Merge pull request #21496 from azasypkin/bug-1034633-subject-padding

Bug 1034633 - [Messages] subtle padding issues while manipulating the subject. r=julien