Bug 837994 - [MMS][User Story] Multiple recipient messaging

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Singeline & Multiline visibility mechanism (callable from recipients instances)

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
When contact chosen from search, add contact and set focus on next input entry

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Restore css "tweaks"

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Match v8 wireframes

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Fix hyper-defensive name escaping

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
PARTIAL
Support picking multiple media types