Fix FTBFS due to missing SQL driver method

This resolves Bug 2117

src/svnqt/cache/sqlite3/qsql_sqlite3.cpp

@@ -320,6 +320,17 @@ void TQSQLite3Driver::close()
     }
 }
 
+bool TQSQLite3Driver::ping()
+{
+    if ( !isOpen() ) {
+        return FALSE;
+    }
+
+    // FIXME
+    // Implement ping if available
+    return TRUE;
+}
+
 TQSqlQuery TQSQLite3Driver::createQuery() const
 {
     return TQSqlQuery(new TQSQLite3Result(this));

src/svnqt/cache/sqlite3/qsql_sqlite3.h

@@ -70,6 +70,7 @@ public:
                const TQString & host,
                int port ) { return open (db, user, password, host, port, TQString()); }
     void close();
+    bool ping();
     TQSqlQuery createQuery() const;
     bool beginTransaction();
     bool commitTransaction();