Merge pull request #386 from hasankhan/offline

updated the changelog for ios 2.0
[client][managed] handle null updatedAt in result gracefully
[client][managed][offline] expose a readonlycollection instead of IEnumerable
Fix duplicate registration bug in Xamarin iOS client
Merge pull request #359 from toddreifsteck/dev

[Xamarin.iOS] Fix duplicate registration bug in Xamarin iOS client
[client][managed][test] reduce memory footprint of .net45 test project and support running from console
[client][managed] fix warnings
Merge pull request #387 from hasankhan/warnings

[client][managed] fix warnings
Merge branch 'dev' into offline

Conflicts:
	sdk/Managed/src/Microsoft.WindowsAzure.MobileServices/Http/HttpUtility.cs
Update CHANGELOG.md
Merge remote-tracking branch 'origin/dev' into offline
Merge pull request #388 from hasankhan/autotest

[client][managed][test] reduce memory footprint of .net45 test project a...
Merge branch 'dev' into offline
Fix iOS push tests to follow updated payload format for APNS
Merge pull request #390 from toddreifsteck/dev

Fix iOS push tests to follow updated payload format for APNS
Merge branch 'dev' into offline
[phonegap] Add QS to repo
[client][managed][offline] ask for __deleted system property for pull
[client][ios][offline] always ask for __deleted system property for sync
Merge pull request #392 from hasankhan/iosincludedeletedparams

[client][ios][offline] always ask for __deleted system property for pull