[iOS] Add If-Match and Precondition handling to DeleteWithItem
Merge branch 'dev' into deleteWithOC
Add test for empty JSON object in body
Merge pull request #239 from toddreifsteck/deleteWithOC

[iOS] Add If-Match and Precondition handling to DeleteWithItem
update readme to Microsoft Azure
Merge pull request #262 from matt-gibbs/updateReadme

update readme to Microsoft Azure
[offline][client][managed] Optimize memory usage in test apps to prevent crash with out-of-memory exception
Merge pull request #263 from hasankhan/testfix

[offline][client][managed] Optimize memory usage in test apps to prevent...
[offline][managed] Added integration test for purge
[offline][managed][xamarin] Exclude tests that don't pass on xamarin.ios
Merge pull request #264 from hasankhan/xamios

[offline][managed][xamarin] Exclude tests that don't pass on xamarin.ios
iOS Offline
Updates to match managed code SDK
Fill out documentation in classes
Merge pull request #268 from phvannor/offline

Offline
Update TableOperation API, Fix core data delete

Moved the item property to the public api on table operations, removed
the constructors, and fixed core data store delete to use the passed in
query correctly
Local store upsert and delete use an array

Modify core data store and offline test helper to use updated
datasource protocol.
[client][managed][offline] Preserve system columns on local store
Flush out CoreDataStore implementation
Merge pull request #269 from phvannor/offline

iOS Clean up documentation, update local store