Updating Xamarin store page details

Per 1.0.0 with new target for .NET 4.5
Fixes #337 - Disables SSL3 fallback.
Merge pull request #338 from couchbase/issue-337

Fixes #337 - Disables SSL3 fallback.
Adds very basic demo, Create and read only.
Clear out text box after new item creation.
Fixes #336. Adds WPF sample app.
Merge pull request #342 from couchbase/wpf-sample

Adds a WPF sample application for Windows desktop.
Merge remote-tracking branch 'upstream/master' into TMRunInTransactionTests