Add quick emoji button next to text input

This allows for a user selectable button to be displayed next to the
SMS text input area to allow quick access to the emoji icons.

Seeing as how the current process to add an emoji requires going through
the menu and then selecting the option, this allows for frequent users
of emojis a much simpler and time saving method.

This modification is based heavily off the AOKP source
introduced by Roman Birg.

New drawable: Jacob Müller

Change-Id: I6fab11f155c5c112ed39785179093cecaa5500f6
Mms: Add the ability to select recipients from a checkbox list

When creating a new message you have to write some letters from the
contacts you want to add and select them by clicking on it.
This can be annoying if you want to send your message to several contacts.
With this change you can manually select numbers from contacts from a
checkbox list.

Change-Id: I94c130bd40ec5dc872446ce66c57a4eb146553af
Mms: Remove text/plain for ACTION_SEND

Always display registered apps for android.intent.action.SEND action, but this is not true.
Actually, it doesn't support that mime/type. Just remove it to avoid unexpected behaviour for
external apps.

See ComposeMessageActivity#addAttachment

Change-Id: I4815a59533dbfc3decfbdbc57bf456ebda3cab7a
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>