Add/fix APNs...

...Enitel, Movistar, Poste Mobile, Trilogy Dominicana, Sipgate, Safaricom, Etisalat AE

PS2: rebase

Change-Id: I9126b3f579fa61dc8f413d562dd71ce840027957
Revert "cm: Add some app-specific performance settings"

This reverts commit 34d5e908433ce79e1c7fbcb88cf1661a4adb1743.
Persist DPI across installs
Add OmniSwitch