[iOS] Allow NSURLconnection to use delegate queue

Client now has a public property to let the connections use a delegate
queue instead of the calling thread
[iOS] Code review updates and minor cleanup

Update test case test
Update how push.h is included
Add newline to MSLoginController due to issue with Doxygen
Merge pull request #313 from phvannor/login-main-thread

[iOS] Allow NSURLconnection to use delegate queue
Correct visibility of Push on Xamarin iOS
Merge pull request #316 from toddreifsteck/master

Correct visibility of Push on Xamarin iOS
Update CHANGELOG.md
Merge remote-tracking branch 'origin/master' into dev
[offline][managed][client] 1.3 alpha4 release notes
Merge branch 'dev' into offline

Conflicts:
	sdk/iOS/src/MSClient.m
	sdk/iOS/src/MSClientConnection.m
Update doxygen.config file
Share scheme for bot
Merge pull request #317 from phvannor/dev

Update doc and support bots in OS X server
Add import MSPush to test file
[iOS] Update test logic for robustness
[iOS] Update Push delete all test

Add validation that all the expected URLs were hit during the test
Merge remote-tracking branch 'origin/dev' into offline
[managed][client][offline] Create all tables before using them.
Fixed duplicate symbols by inclusion of .m file

Changed inclusion of MSTableOperationError.m to MSTableOperationError.h
to avoid duplicate symbols in build and other required MSJSONSerializer.h
header
[managed][client][offline] Upgrade sqlite store to Profile259
Merge pull request #318 from phvannor/dev

[iOS] Test logic cleanup