AtomHandler.parse shouldn't ever try to guess a type of a property value

[smarx]

See http://stackoverflow.com/questions/9687872/azure-sdk-for-node-is-rounding-large-numbers-in-json-responses for what can go wrong.

AtomHandler.parse uses a "convertTypes" parameter to decide whether it should try to guess at properties that don't have an explicit type. I don't think this is ever the right thing to do. I believe the default type on a value in OData is Edm.String.

My suggestion would be to get rid of the "convertTypes" parameter and always return a string value when there's no explicit type.

[andrerod]

We should definetely fix this.

[andrerod]

Fixed.