Merge pull request #670 from andrerod/release-0.6.12

#668: Fix in table serialization
Fix for serialization of undefined values, fixing sql db create using username/password
Merge pull request #676 from christav/fix-sql-db-create

Fix for serialization of undefined values, fixing sql db create using username/password
Merge pull request #678 from WindowsAzure/release-0.6.12

Merge release 0.7.0 back into master
Merge pull request #679 from WindowsAzure/master

Merge master into dev
Merge remote-tracking branch 'upstream/dev' into dev