Better QuickMessage layout for mdpi

Change-Id: I07a06ecf23580982ac442aa95004e46c3d202fc5
Mms: Prevent popup window from closing

Popup window will close if pressed outside of it.

This commit disables touches outside the popup.

10x Revertron

Change-Id: Ife491d8b58d1b32d59760eb10a6e10cb67969974
Mms: use Holo Light theme

PS6:  Changed actionbar buttons order so delete
      is the right-most one.
PS8:  Added "mark as read" drawables (thanks Björn)
PS10: Fixed ActionBar text color.

Screenshots:
  https://dl.dropboxusercontent.com/u/16268774/cm_temp/newmms1.jpg
  https://dl.dropboxusercontent.com/u/16268774/cm_temp/newmms2.jpg
  https://dl.dropboxusercontent.com/u/16268774/cm_temp/newmms3.jpg

Change-Id: I8eefe77687d03b143a85261413a05e3ed76ba090

Conflicts:

	res/menu/conversation_multi_select_menu.xml
Mms: Use the nice colorful LetterTileDefaultImages

Use the new default contact images introduced in Android 4.4.3

PS12:
-added missing mContactKey init

PS13:
-added for more avatar calls

PS14:
-whitespace

PS18;
-quick message popup

PS19:
-fix contacts caching in recipients picker
-fix derp in dividers

Change-Id: I280a5e3abb8dffb9340d360a99da966ea48746f1

Conflicts:
	res/layout/add_recipients_list_item.xml
	src/com/android/mms/data/PhoneNumber.java
	src/com/android/mms/quickmessage/QuickMessagePopup.java
	src/com/android/mms/ui/AddRecipientsListItem.java

Conflicts:

	src/com/android/mms/quickmessage/QuickMessagePopup.java