Deprecate Button::setButtonText() and fix API docs, nothing is prepended
setButtonText() was just forwarding to setText() and not prepending "Download New" since KDELibs 4.4 after commit f1298d6a4147d919a61fbfbab825a2ef96ab2639
setButtonText() was just forwarding to setText() and not prepending "Download New" since KDELibs 4.4 after commit f1298d6a4147d919a61fbfbab825a2ef96ab2639