mms: use InternalContactsCount instead of the non-public ContactsCount interface

requires: http://review.cyanogenmod.org/#/c/80954/

Change-Id: I0217d5309678f4e91ecf48be8378175369c03b05
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Mms: Allow text input field to expand up to 9 lines for long SMS messages

Change-Id: Ia0f3317aff48fc80ed748f36183e1186e2ee2b1a