Local storage class and unit tests
PushHttp initial code

Address code review feedback in local storage and add PushHttp. Code
still needs to be moved around and cleaned but is functional and tested
in happy path.
Initial code completed but not tested
Native registration tests, styling and comments
Address various Code Review feedback
All feedback and test issues corrected
All unit tests complete
Make MultiRequestTestFilter depend on TestFilter
Code review/design feedback
Merge pull request #278 from toddreifsteck/nh

Enhanced push client for iOS in Objective C
Correct nil issue in MSRegistrationManager

Found during E2E testing
Merge pull request #285 from toddreifsteck/nh

Fix registrationId save which currently breaks unit tests
Update iOS SDK Minor Version
Update Changelog with 1.2.2 changes