QmlJSDebugger: Code cosmetics

...creator/qml/qmljsdebugger/editor/abstractliveedittool.cpp

...ator/qml/qmljsdebugger/editor/boundingrecthighlighter.cpp

...eator/qml/qmljsdebugger/editor/liveselectionindicator.cpp

.../qtcreator/qml/qmljsdebugger/editor/liveselectiontool.cpp

...l/qmljsdebugger/editor/livesingleselectionmanipulator.cpp

share/qtcreator/qml/qmljsdebugger/editor/qmltoolbar.cpp

share/qtcreator/qml/qmljsdebugger/editor/qmltoolbar.h

...eator/qml/qmljsdebugger/editor/subcomponenteditortool.cpp

share/qtcreator/qml/qmljsdebugger/editor/zoomtool.cpp

...ator/qml/qmljsdebugger/include/qdeclarativeviewobserver.h

...creator/qml/qmljsdebugger/qdeclarativeobserverservice.cpp

.../qtcreator/qml/qmljsdebugger/qdeclarativeviewobserver.cpp

.../qtcreator/qml/qmljsdebugger/qdeclarativeviewobserver_p.h

src/plugins/qt4projectmanager/qtversionmanager.h