VCS: Allow use of base name for executable

Actual path is found on startup and when setting is changed

Change-Id: If2cb0735953b9fb64df7425230c98efb384d9287
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

src/plugins/cvs/cvssettings.h

@@ -56,6 +56,7 @@ struct CvsSettings
     bool equals(const CvsSettings &s) const;
 
     QString cvsCommand;
+    QString cvsBinaryPath;
     QString cvsRoot;
     QString cvsDiffOptions;
     int timeOutS;