Added few new functions to IVersionControl, VCSManager and GeneratedFile to support the funcationality needed by the trac plugin.

All the version control plugins updated to have implementations according to the interface changes.

Merge-request: 2178
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

Merge-request: 2178
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

src/plugins/coreplugin/basefilewizard.h

@@ -101,6 +101,7 @@ public:
     void setEditorId(const QString &k);
 
     bool write(QString *errorMessage) const;
+    void writeAccess(bool access = true);
 
     Attributes attributes() const;
     void setAttributes(Attributes a);