1.1.0

• Fix error method causing NoMethodError.
• Better documentation for all methods, including adding the missing documentation for the private error method.
• Case/When statement instead of if conditional in request_successful?
• Better code in all the getter methods, improving how values are returned and how error is called.
• New get_error_description for getting the description to go with the ambiguous error message.
• Better error code, which is now dependent on request_successful?, instead of having getter methods being dependent on request_successful?. This greatly reduces the length of the methods.
• HTTPClient dependency is no longer open-ended.