Merge pull request #22 from stampsy/xamarin-pr-avoid-starting-tasks-where-possible

Use TaskCompletionSource instead of Task.Factory.StartNew where simple result is needed
Update iOS csproj targets
Don't block threadpool threads waiting for request

Resolves #23
Merge pull request #24 from stampsy/xamarin-pr-preserve-synchronization-context

Preserve synchronization context because OnRetrievedAccountProperties uses it
Merge pull request #29 from stampsy/xamarin-pr-expose-requestaccesstokenasync

Expose RequestAccessTokenAsync down the hierarchy
Merge pull request #30 from stampsy/xamarin-pr-make-oauth1-header-configurable

Make OAuth 1 header generation overridable
Merge pull request #25 from stampsy/xamarin-pr-dont-leave-task-exceptions-unobserved

Propagate GetAccessTokenAsync exceptions to the calling code
Merge pull request #32 from stampsy/xamarin-pr-add-getvaluefromjson-to-webex

Add GetValueFromJson to WebEx
Remove manual tests

They don't actually test anything and include clientids/secrets.
Cleanup sln and remove android tests
Add WebUtilities
Add/cleanup tests
Enable support for OAuth2 custom access_token param names and JSON authentication responses. Fix #18. Fix #19.
Added guards to make sure Authenticator.Completed is only invoked once.
Add component screenshot/icons
Add component yaml
Merge pull request #33 from praeclarum/master

Enable support for OAuth2 custom access_token param names and JSON authentication responses.
Add System.Json to Android and Desktop
Add missing argument comment
Disable documentation generation