URLMatcher.match incorrectly matches <path:_>

[RolandasRazma]

URLMatcher.match incorrectly matches empty url's. If you pass "" to match it will return wildcard paths

for example:

"" will match "/anything/<path:_>"
"/anything" will match "/anything/<path:_>" and is incorrect as patch is /anything/* not /anything*

normalizeURL normalizes "/" to "" - not sure if thats intended behaviour

[RolandasRazma]

created failing tests pr

[RolandasRazma]

also added fix.

this is not complete fix. it DOES make all test pass but it doesn't fix underlaying problem