Docs on API changes in v2.2.
Merge pull request #12 from jeffswartz/v2.2-docs

Docs on API changes in v2.2.
Update .Net Server SDK docs to have a relay mode by default.
changes detfault CreateSession to return a relayed session, fixes #13
Docs corrections.
Merge remote-tracking branch 'jeffswartz/jira/14492' into issue-13
Merge branch 'aoberoi-issue-13'
Merge remote-tracking branch 'origin/master'
Updating to version 2.2.1-Alpha
Begin development on next version
Docs - new default setting for CreateSession()
edits to the readme file.
Merge pull request #15 from jeffswartz/v2.2-docs

edits to the readme file.
add expired state to archive representation, fixes #16
adds test for archives with unknown properties, fixes #17
Merge pull request #18 from aoberoi/issue-17

adds test for archives with unknown properties, fixes #17
Docs corrections:

- New OpenTokSDK.ArchiveStatus EXPIRED value.
- Support for Windows Azure containers for uploading archive files.
New generated reference docs.
Merge pull request #1 from jeffswartz/issue-16

Docs edits
Update README.md