Merge pull request #457 from bhariharan/unstable

Latest shared
Adding hybrid custom error handling
Comment blocks and code for enabling push notifications
Adding push notification functionality to sample, template apps
Merge pull request #458 from khawkins/hybrid_error_handling

Adding hybrid custom error handling
Merge pull request #459 from khawkins/expose_push_notifications

Comment blocks and code for enabling push notifications
Updating ThirdPartyDependencies
Merge pull request #460 from khawkins/unstable

Updating ThirdPartyDependencies
Syncing up package repo changes
Merge pull request #461 from khawkins/unstable

Syncing up package repo changes
README updates