Added expired as a possible state of an archive
adds tests for expired archive status
mock fixture for tests of expired archive status
adds test for unknown archive properties
Docs edits:

- new 'expired' archive status
- support for Windows Azure as an upload target
Merge pull request #3 from jeffswartz/issue-61

Docs edits
Docs edits - peer-to-peer sessions are now known as sessions with the media mode set to relayed.
Merge pull request #4 from jeffswartz/issue-61

Docs edits - peer-to-peer sessions are now known as sessions with the me...
Merge branch 'aoberoi-issue-61'
Update to version 2.2.2
Begin development on next version
adds more detail to release process
Minor docs change. Information on pricing is available at http://tokbox.com/pricing.
updates bash syntax in sample run-demo scripts, fixes #68
change return type of Archive#toJson() from array to string
updates archiving sample app to use fixed toJson() method
adds test case for Archive#toJson(), fixes #73
adds encrypted notification token for slack, fixes #77
Merge pull request #78 from aoberoi/issue-77

adds encrypted notification token for slack, fixes #77
adds ignored sample files to gitignore, fixes #75