Release 0.25.0

• v0.25.0
  • Master Release - May 3, 2018
  • Reorganized project as minimally as possible to make using unit and functional test apps much easier.
    • Simplified the Branch-TestBed project by removing CocoaPods dependencies needed for unit tests.
      • The Branch-TestBed now has just a .xcodeproj file now, the .xcworkspace has been deleted.
    • Moved the unit tests to ./Branch-SDK-Tests so they can be easily included in other projects.
      • The testing framework dependencies are now included as regular frameworks located in
        Branch-SDK-Tests/Vendor.
  • Added an example of Adjust revenue event tracking in TestBed-Swift.