Add missing files.

README

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+The gui-thread-check profile module
+===================================
+
+This profiler module can be used to check if a GTK# application is trying to
+invoke gtk or gdk methods from a thread which is not the main GUI thread.
+
+To use it, build and install the module, and then run your application with
+the command:
+
+  mono --profile=gui-thread-check yourapp.exe
+
+If the profiler is properly installed, you'll see an output like this:
+
+*** Running with gui-thread-check ***
+*** GUI THREAD INITIALIZED: 2861676352
+
+While the application is running, if the profiler detects a non-gui thread
+invoking gtk methods, it will print a warning message together with a
+stack trace. For example:
+
+*** GTK CALL NOT IN GUI THREAD: Widget.gtk_widget_get_parent
+   Widget.get_Parent
+   SourceEditorWidget.SetLastActiveEditor
+   SourceEditorWidget.get_TextEditor
+   SourceEditorWidget.get_Document
+   SourceEditorWidget.HandleParseInformationUpdaterWorkerThreadDoWork
+   BackgroundWorker.OnDoWork
+   BackgroundWorker.ProcessWorker
+