Revert "Fixed missing variable"

This reverts commit e8d2f1cdabcad2eed70a467cef2eb2b6be526bb2.
Revert "Mms: Add the ability to select recipients from a checkbox list"

This reverts commit a9b27ef7bcc2ebc48ba32a0733a5fa8070b75a30.
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 and groups
from a checkbox list.

    * Patch Set 1: intial commit
    * Patch Set 2: total recoding, groups added
    * Patch Set 3: some code cleanup
    * Patch Set 4: UI correction
    * Patch Set 5: Some more code cleanup, reduce button padding
    * Patch Set 6: Make add button visible again
    * Patch Set 7: Some correction about default number and first entry,
                   indeed if default has not been set by user, then we
                   have to set a first entry to be like a default. Hanzi
                   support added. Check a group now checks default number or
                   first entry of members. Add button padding fixed.
                   Filter not implemented yet. Avatar loading still not ok.

Change-Id: I94c130bd40ec5dc872446ce66c57a4eb146553af

Conflicts:
	res/values/cm_strings.xml
	src/com/android/mms/ui/ComposeMessageActivity.java