Add floating dialpad action button
* Replace fake action bar at the bottom of the screen with a floating
action button which casts a shadow.
* Remove the now unused mDialpadOverflowMenu button in DialtactsActivity
* Modify dialpad layout to add a bottom row of buttons which provide
access to the add contact button and overflow menu
* Fix dialpad layout so the heights applied in XML are actually
respected - previously they were being ignored and each dialpad key
was being assigned the height of MATCH_PARENT
Bug: 13932988
Change-Id: I6e48c00c5ceeeffed142c3dd259e630d6daf8111
15 files changed
