[Dont merge yet, explanation inside] storage sdk -> 3.0.2, config sdk -> 2.0.3

This pull request upgrades to the newest version of the Azure Storage SDK. However, due to breaking protocol changes in this SDK, the 2.x emulators are not compatible.

As of today (1/23/14), there isn't an emulator that actually works with this version of the SDK. Microsoft has said to expect one in the near future. Once it's released, I think we can feel more comfortable with releasing this.