Rename namespace Core::Utils into Utils

Also move Designer::Internal::FormWindowEditor ->
Designer::FormWindowEditor.

src/libs/utils/consoleprocess.cpp

@@ -29,7 +29,6 @@
 
 #include "consoleprocess.h"
 
-namespace Core {
 namespace Utils {
 
 QString ConsoleProcess::modeOption(Mode m)
@@ -83,4 +82,3 @@ QString ConsoleProcess::msgCannotExecute(const QString & p, const QString &why)
 }
 
 }
-}