b/14239989
We take advantage of ListView's feature that displays an entirely different
view in place when the backing Adapter is empty. The empty view is simply a
TextView displaying "No quick responses available".
Change-Id: I244ffd21fc4c1557c73979d4bb7c99306b11ebb2
Added "Insert quick response" button to MessageCompose's action bar. Clicking
it opens dialog with available quick responses. Selecting one of the responses
will insert it into message body at the current cursor location. Also added
menu in account preferences to create, edit, and delete quick responses.
Change-Id: I85f3f6b36801cf112ec9d7c31135a917456173d7
James Lemieux