Bumping node version and updating changelog.
Merge pull request #167 from WindowsAzure/release2-dec-2012

Release2 dec 2012
Adding support for creating and deleting affinity groups
Changed the option names to --description and --affinity-group on the storage command. This is the same options as used on other commands in the CLI (vm disk, vm image).
Update ChangeLog.txt
Update ChangeLog.txt
Update README.md
Update README.md
Update README.md
Update README.md
Fixing typos
Update README.md
Update README.md
Fix SDK version
Merge pull request #306 from glennblock/release

Release 0.6.11 - Updating readme and changelog
Fix merge issue
Fix conflict
Merge pull request #307 from WindowsAzure/release

Release
Merged release 0.6.11 from master
sql db create works using managment cert.