Added TestCategory = Integration attributes to all test methods in integration test fixtures
add linked in oauth2 support
Merge pull request #445 from larsw/testcategory-on-integration-tests

Decorated all test methods in integration test fixtures with [TestCategory("Integration")] for better filtering
added sample that uses MembershipReboot to implement identity management
added reference to core and added nuget restore
Changed methods to virtual on ProviderUserRepository
Use Mongo within IdentityServer