Fix Giffgaff APN

Per https://jira.cyanogenmod.org/browse/CYAN-3035

Change-Id: I6b5109849ec021877d79356eeb5b579a1b5b5bc6
Add OVIVO APNs

Per https://jira.cyanogenmod.org/browse/CYAN-2987 and
http://ovivomobile.com/wp-content/uploads/2013/05/OVIVO-Mobile-Android-Phones-Setup-Guide.pdf

Change-Id: I596d7614ce13bc28ecc05370c18eda82ef061060
Fix Telenor DK MMS APN

Per https://jira.cyanogenmod.org/browse/CYAN-2513

Change-Id: I29063f5be9a54843e551ddda3c86ab0fa932e5ee
Remove proxy and port on APN 3 Indonesia

Cannot access play store with proxy on 3 indonesia, must remove it to get access

Change-Id: I51454045e28df51f03886a30a306ee2308d12973
Update i9100g && Tab 2 device maintainers

Change-Id: I19cad8c448bc2b8862b9ce7e9dcc9cf66a126c17
cm: Add a simplified version string

Similar to the ro.build.id/ro.build.display.id distinction, and with
the same rationale; signed builds are intended to be stable by
definition, the release types have different meanings (user vs
userdebug), and the full CM version has too much duplicated information:
the device's name and build date are already present elsewhere in the
same information screen.

For signed builds, remove the duplicated information and the type,
leaving only the actual numeric version and the verbose build identifier,
turning for example "11-20140109-SNAPSHOT-HappyPonies-device" into just
"11.0-HappyPonies". If a simplified display version can't be built,
it'll be the same as the full ro.cm.version

Change-Id: I7d8cccbb3205bde710f0004df0a6bd12c39693f1