[client][managed] Throw a conflict exception on 409
[iOS Test] Fix copy issue on unattended test path

Have unattended tests copy required features array
Fix MSPush device token tag logic
Merge pull request #341 from phvannor/dev

[iOS Test] Fix copy issue on unattended test path
[iOS Test] Update to 1.2.3 framework file
Merge pull request #339 from hasankhan/dev

[client][managed] Throw a conflict exception on 409
Merge pull request #342 from phvannor/dev

[iOS Test] Update to 1.2.3 framework file