CM11 Themes: Add feature for new themes.

Change-Id: I0da30606534c13a43de33bef08f79fbbb1b348d3
(cherry picked from commit ca330a2862c2914cbaa3a3b5071113f35d986173)
Merge "build: telephony: Only include VoiceDialer in telephony builds" into cm-11.0
(cherry picked from commit dbe90f67a25a88e026670cb3efe30e5dfc342e51)
apns-conf: Add TalkTalk APN

Change-Id: Ib0ca582a5f81f5b0bc9b1f682908f6064f24fff5
(cherry picked from commit 7dea8f1303a3900c3e06a5618a818c9c03aa72ad)