Email: Clarify some strings

Change-Id: Icda4add7a05731e35af5f7b207c6507290c10313
Automatic translation import

Change-Id: I1d514e2d0909ecb569ee9372bfc41a62a96a9b88
Merge "Email: Clarify some strings" into cm-11.0
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_packages_apps_Email into cm-11.0