fix: url match logic of http server

[keroxp]

• Use only pathname for matching instead of full url
• Fixed url match logic for regular expression

Currently, both "/foo" and "/bar/foo" are matched to /\/foo/ and the later is used because it is longer than the former. This is correct but strange behavior for url routing. I changed logic of evaluation for priority of matches:

• Matches with the earliest index (RegexMatchArray.index) is prior to others.
• The longest match is picked from them.

With this logic,

• "/foo" is prior to "/bar/foo" because the former matched to /\/foo/ at index 0.
• "/foo/bar" is prior to "/foo" because the former has longer match than the later.

[ry]

LGTM