This parameter exists on CPView, so it has been removed here. A note was added on the setter to identify that the parameter was defined in the superclass.
Previously, _textFieldBackgroundColor was used as the internal variable, and getter/setter methods were explicitly declared to handle getting/setting this value.
This commit changes the name of the internal variable to match the Cocoa compliant method (backgroundColor/setBackgroundColor). It also declares an @accessor option to auto-generate the getter. The setter is explicitly declared because it needs to mark the object as needing display.
Additionally, the logic for the setting is moved from the older method, setTextFieldBackgroundColor, to the new one, setBackgroundColor, and a comment was made to clarify that the older one was deprecated with a link to this issue.
CPDateFormatter previously only defined symbols for "en"-locale. Using another locale simple yielded nil-results for most keys. This fix addresses this behavior by always returning the english symbols as default unless other symbols have been explicitly provided or set.
CPDateFormatter only supports the "en" locale by default. All other locales yield empty results for most symbols. The tests added ensure, that the english "default" values are returned if no specific data is available (which is currently the case for every locale except "en").