WINTERMUTE: Keep _alphaMode private in TransparentSurface
WINTERMUTE: Make *_entity private in UIEntity
WINTERMUTE: Make TextAlign private in UIText
WINTERMUTE: Keep attributes in UIWindow private
WINTERMUTE: Make some members of UIObject private
WINTERMUTE: Add getListener()
WINTERMUTE: Make _parentNotify private in UIObject
WINTERMUTE: Keep _back private in UIObject
WINTERMUTE: Avoid feeding setWidth negative values
WINTERMUTE: Keep attributes private in UIEdit
WINTERMUTE: Keep some attributes private in UIButton
WINTERMUTE: Setters/getters for UIButton
WINTERMUTE: Make sprites private in UIButton
WINTERMUTE: add UIButton::setTextAlign
WINTERMUTE: s/put/set/ in setters
WINTERMUTE: const'ify getters
WINTERMUTE: Formatting
WINTERMUTE: Constify some getters in TransparentSurface, UIObject and UIWindow
WINTERMUTE: Formatting (Clean up extra whitespace in UIObject).
WINTERMUTE: Formatting with Astyle (UIButton, UIEdit, UIObject, UIWindow, TransparentSurface)