Merge changes I0f1ed20a,Ia68d3b13,I72047d59,Ieff3c7fb,I53c3896a, ...

* changes:
  Added method to set Save and Redo buttons enabled/disabled Added logic to setState() method to change state of buttons
  Update emergency call map and device number UI.
  Fix SpeedDialUiItem.getDefaultVoiceChannel
  Fix an AOSP build error caused by version codes
  Update connection label.
  Remove redundant version checks and annotations in the assisted dialing package.