changes links in popup tab; improves nicknames

* Disabled `<A />`s work differently at different sites. Now tab titles
remained pure texts but those with outside links will be followed by an
`<A href>+</A>`.
* Nicknames of "施行法" and "施行細則" are auto-added if their "the law" has
nicknames.
* Add most of nicknames issued by J.Y. interpretations. (See [my law
learning note](http://law-learning-note.blogspot.tw/p/blog-page_7.html))