Wikipedia Search Toolbar (zh-tw)

This widget is modified from en.wikipedia widget. There is some modification for zh.wikipedia.org for internal links and encoding problems for traditional Chinese (zh-tw). Update 1.4 fix: correct the section range for the proper title 修正顯示範圍，以便能有適當的標題顏色區塊(小改章節最小長度，因應中文文章通常比較短的狀況) Thanks to Chien-wen Chen's translation help and the original en.wikipedia widget design.