Apn settings fixes / code maintainence

Depends on : http://review.cyanogenmod.org/54909

Cleanup unecessary resources and use global ones
  - This fixes the duplicate id issue currently causing apn's to be un-editable

Bring the ui aspect of the preference up to speed with ics
 - Use ics highlight / layout...etc
 - Use fragments

Patchset 5 : Remove theme for ApnEditor
             Use static access for variables
Patchset 6 : Launch apn editor internally as a fragment
	     Replace deprecated managedQuery with CursorLoader

Apn Settings : Fix panel title

Show appropriate apn editor title

Change-Id: I1f9dbce5dbf464db79d7c2fbedb8f833e4b46468

Settings - add an AlertDialog before to delete APN to avoid fails

patch 1: fix blank space
patch 2: remove FR translation and change NegativeButton string
patch 3: improve the NegativeButton (thank you, David)
patch 4: remove create()

Change-Id: I3361d4160a7e1c4eaee094f08c7d212f71e9e0e7

* Forward port from cm-10.2, adjusted for 4.4

Change-Id: Ie63fa1018ffb7bc419e4d7915419657de30f5b22