1.修复小bug

2.增加Node到Terminal的映射。

Signed-off-by: facat@lab.com <facat@lab.com>

testHasttable/busbarsection.h

@@ -7,6 +7,7 @@ class BusbarSection:public BasicElementInfo
 public:
     explicit BusbarSection(QObject *parent = 0);
     virtual bool parse(QXmlStreamReader& reader);
+    QString getTerminal();
 protected:
     QString terminal;
     virtual bool derivedParse(QXmlStreamReader& reader);