Highlighting now appears when selecting a quick response. On "insert
quick response" dialog has exactly two lines of quick response shown.
Done also works properly now on the phone.
Known bug: text is not ellipsized. However, this is dependent
on bug 3389545 being fixed by frameworks team.
Change-Id: I7490e139267963d1508fa0573144a10c9190e11c
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
