Fix call stats fragment layout.

Change-Id: I10bf2603a982f11f8e031db0dffa3f7039fa11ea
Improve strings.

Change-Id: I852e220586d41f7c1f6b945a1efd2132fc615c5b
Merge "Fix call stats fragment layout." into cm-11.0
Merge remote-tracking branch 'CM/cm-11.0' into cm-11.0