Add to dialer stats: track actions in the dialer to actually initiate a call

For retail devices (and installer builds), introduce tags to be read
by a separate, additional, package.

This will not be read or collected in any community (nightly/M/etc) or
self-built build.

Change-Id: Ie0069234589c8d12efd7a98b1dc584d4b0cbbbb7
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0

Conflicts:
	src/com/android/dialer/dialpad/DialpadFragment.java

Change-Id: I198674cd23e5699a828d404fa67b172ada32919f