Support for match with quoted pattern

[suarez12138]

For Pattern.quote(), it turns a regex into a raw value, which if matched directly as an argument to :match() could cause an error like the one below mentioned in #986 due to lack of deliberate escaping.

final Document doc = Jsoup.parse("<div>1) foo</div>");
System.out.println(doc.select("div:matches(" + Pattern.quote("1)") + ")"));

Therefore supports detection of the \Q and \E that Pattern.quote() generates when parsing.

[jhy]

Neato! Thanks, merged