Bug 825 - Sync Lock behaves inconsistently when moving of clips is disabled

Sync Lock on now means clips can move.  So it 'trumps' that setting, when on.

src/Prefs.h

@@ -34,13 +34,29 @@
 
 #include <wx/config.h>
 #include <wx/fileconf.h>
+#include <wx/convauto.h>
 
 void InitPreferences();
 void FinishPreferences();
 
-extern AUDACITY_DLL_API wxFileConfig *gPrefs;
+class AudacityPrefs;
+
+
+extern AUDACITY_DLL_API AudacityPrefs *gPrefs;
 extern int gMenusDirty;
 
+class  AUDACITY_DLL_API AudacityPrefs : public wxFileConfig 
+{
+public:
+   AudacityPrefs(const wxString& appName = wxEmptyString,
+               const wxString& vendorName = wxEmptyString,
+               const wxString& localFilename = wxEmptyString,
+               const wxString& globalFilename = wxEmptyString,
+               long style = wxCONFIG_USE_LOCAL_FILE | wxCONFIG_USE_GLOBAL_FILE,
+               const wxMBConv& conv = wxConvAuto());
+   bool GetEditClipsCanMove();
+};
+
 // Packages a table of user-visible choices each with an internal code string,
 // a preference key path,
 // and a default choice