Workaround for dirty build folders.

My disgust just turned into barely contained rage :<

gui/MainWindow.cpp

@@ -17,7 +17,7 @@
  * limitations under the License.
  */
 #include "MultiMC.h"
-#include "Config.h"
+#include "BuildConfig.h"
 
 #include "MainWindow.h"
 #include "ui_MainWindow.h"

gui/dialogs/AboutDialog.cpp

@@ -18,7 +18,7 @@
 #include <QIcon>
 #include "MultiMC.h"
 #include "gui/Platform.h"
-#include "Config.h"
+#include "BuildConfig.h"
 
 AboutDialog::AboutDialog(QWidget *parent) : QDialog(parent), ui(new Ui::AboutDialog)
 {