Merge pull request #2 from efimovandr/master

Amazon Kindle Fire support. CreateId/Upsert API support. E2E tested by Hitesh, Andrey and ElioDa.
Merge pull request #3 from efimovandr/master

Directory structure change
Merge pull request #4 from efimovandr/master

iOS SDK initial commit
New build script
path adjustments for build script
build script adjust
Added scheme to test .xcodeproj