Merge pull request #5 from phvannor/master

[iOS][Offline] Update offline iOS sample to use alpha2
Update README.md
[Android/ToDo offline] Quickstart as downloaded from portal
[Android/ToDo offline] Update quickstart to edit items
[Android/ToDo offline] Update SDK to 2.0.0-alpha

Also fixed breaking changes.
[Android/ToDo offline] Change mobile service calls to use new API
[Android/ToDo offline] From table to sync table
[Android/ToDo offline] Add version column to table
[Android/ToDo offline] Add conflict resolution handler
[Android/ToDo offline] Change conflict resolution policy
Merge pull request #6 from carlosfigueira/master

Offline-enabled ToDo app for Android