Issue #1353, internal getters and setters.

Getters/setters were used internally for x, y, width, height, scalex, scaley and rotation to facilitate notification when those properties are retrieved or set. Turns out overriding these isn't really very useful, so we decided not to use the getters and setters internally. Other properties that might be useful to override were left alone, such as isVisible, setStage, setParent, etc.

Also, think of all zee performancez gained!