[UNITYSDK-170] Fix so that user/create works again.
[UNITYSDK-171] Added some error reporting to shop UI.
[UNITYSDK-172] Stat costs in shop are checked against current value, rather than using cached "ok" value.
[UNITYSDK-151] Buying from shop disabled while another purchase is in progress.
[UNITYSDK-11] StringToJSON implemented according to www.json.org
[UNITYSDK-169] Corrected script references.
[UNITYSDK-175] Added row height to inventory widget
[UNITYSDK-176] Styled Inventory Widget
[UNITYSDK-177] Added missing (GameObject/Create Other/Roar/Inventory Widget) menu item.
[UNITYSDK-150] Made IUser conform to API document

* Renamed IUser.DoCreate to IUser.Create
* Renamed IUser.DoLogin to IUser.Login
* Renamed IUser.DoLogout to IUser.Logout
* Added IUser.ChangeName
* Added IUser.ChangePassword
* Moved IRoar.WhoAmI to IUser.WhoAmI
* Removed IRoar.Login
* Removed IRoar.Logout
* Removed IRoar.Create
[UNITYSDK-147] Warnings displayed in the Unity's console
[UNITYSDK-30 fixup] Added stub data member to test WWWForm to allow tests to compile.
[UNITYSDK-30 fixup] Fix so that tests pass again
Merge branch 'develop' of https://github.com/roarengine/sdk-unity into UNITYSDK-53
Server Events tests and fixes