Implement ability to add repository to team. https://developer.github.com/v3/orgs/teams/#add-team-repo
bumped the version of FAKE
generate XML-docs in release mode
add XML-docs alongside each assembly
added some more docs
stubbed release notes
Merge pull request #586 from octokit/update-some-things

[0.5.1] ship the xml-docs in the package
version bump
actually link to the PR
Merge branch 'add-repository-to-team' of https://github.com/kevfromireland/octokit.net into kevfromireland-add-repository-to-team

Conflicts:
	Octokit.Tests/Clients/TeamsClientTests.cs
	Octokit/Clients/ITeamsClient.cs
	Octokit/Helpers/ApiUrls.cs
actually parameterize it right
Merge pull request #589 from octokit/kevfromireland-add-repository-to-team

Implement ability to add repository to team (redux)
All models used in PATCH verbs should have nullable fields
initialize the labels if you have existing labels
take care of initializing the labels array as late as possible
Merge pull request #591 from octokit/thedillonb-nullable-fields-in-patch

backport "All models used in PATCH verbs should have nullable fields" to v0.6
well that date was completely wrong
drafted new release notes
version bump
tidy up release notes