This mainly allows for more precise shutdown and tightens the set
of allowed transitions.

see http://sourceware.org/bugzilla/show_bug.cgi?id=11797

Preparation for removing MaemoDebugRunControl.

Reviewed-by: kh1

Reviewed-by: ck

Reviewed-by: ck

An attempt to fix http://bugreports.qt.nokia.com/browse/QTCREATORBUG-1841

Conflicts:
	src/plugins/qmlinspector/qmlinspectorplugin.cpp
	src/plugins/qmljseditor/qmljseditor.h
	src/plugins/qmljsinspector/QmlJSInspector.pluginspec
	src/tools/qml/qmlobserver/editor/resizehandleitem.h

also cleaned up old stuff

qmljsinspector: use the columnNumber as well as the lineNumber to locate QDeclarativeDebugObjectReference

Use a smarter way to compare the AST (based on the diffX algorithm)
That way we do not rely anymore on the id property