Email: Clarify some strings

Change-Id: Icda4add7a05731e35af5f7b207c6507290c10313
Automatic translation import

Change-Id: I1d514e2d0909ecb569ee9372bfc41a62a96a9b88
Merge "Email: Clarify some strings" into cm-11.0
Email: Remove unnecessary enable sync size setting

* Determine whether sync size limiting is enabled based on the sync size
  setting itself.
* Database column must remain, as there is no support for deleting
  columns in SQLite.

Change-Id: Ica7808de03dd76bf53f4cfbe8618bacb4859d1b1
Automatic translation import

Change-Id: I8f829bbe7b10063ccafafab213bc80e7ea8b4432
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Email into kitkat