Bug 917312 - Part 1: Accept client provisioing messages.
Bug 917312 - Part 2: Update UI.
Bug 917312 - Part 3: Parse WAP provisioning doc.
Bug 917312 - Part 4: Store new APNs into the settings database.
Bug 917312 - Part 5: Authenticate server.
Merge pull request #13193 from jaoo/917312

Bug 917312 - [WAP push][Gaia] Support handling client provisioning messages. r=gsvelto