CMakePM: Use CtrlC stub for the CMake process

This makes sure that the CMake process is terminated.

Fixes: QTCREATORBUG-27518
Change-Id: Ibe227f6336be312abbe2517af421856463e9c9e8
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cmakeprojectmanager/cmakeprocess.cpp

@@ -140,6 +140,7 @@ void CMakeProcess::run(const BuildDirParameters &parameters, const QStringList &
                                         "CMake.Configure",
                                         10);
 
+    process->setUseCtrlCStub(true);
     process->setCommand(commandLine);
     emit started();
     m_elapsed.start();