Update ext to the latest binaries
90% of .NET development is right clicking
Merge pull request #71 from github/update-ext

Move to official Reactive Extensions for Xamarin.*
Make our copy of SQLite3 internal

Other people are using the official or MVX versions of SQLite and we're
breaking them
NuGet package restore is build terrorism
Merge pull request #72 from github/hide-sqlite3

Hide our SQLite3
Merge remote-tracking branch 'origin/master' into all-objects-tests
Fix handle leak for every SQLite3 test
Death to TestScheduler