Use the make command defined by the tool chain

For now only for GenericProject, since the CMakeProject doesn't have the
right tool chain set on Windows yet.

Reviewed-by: dt

src/plugins/cmakeprojectmanager/cmakeproject.h

@@ -44,7 +44,7 @@
 #include <QtCore/QXmlStreamReader>
 
 namespace CMakeProjectManager {
-namespace Internal{
+namespace Internal {
 
 class CMakeFile;