Update nuget packages to Azure Storage 3.1.0.1
Update project/package.config for azure 3.1.0.1
Update test entity with attribute to denote partition/row key
Update test table name because '_' characters are no longer allowed
Force AtomPub formatting for table requests
No longer check in packages
Merge pull request #85 from dontjee/azureStorage3_1

Upgrade to Azure Storage SDK 3.1.0.1