OfficeDev/PnP — pull request #281 by erwinvanhunen (2014-11-21 18:21:30+00:00)
Title: Refactored create field methods to use entities

* Refactored create field methods to use a CreateFieldInformation entity.
* Marked old createfield methods as obsolete.
* Changed the way additional XML properties are handled by using an IEnumberable> instead of a string. The string value could potentially contain errors which would cause the string creation to fail.
* Updated unittests to use the CreateFieldInformation entity instead.