update servo-url and fix detection

[anonrig]

We are still the fastest URL parser on both RFC-3986 and WHATWG.

--------------------------------------------------------------------------------------------
Benchmark                                  Time             CPU   Iterations UserCounters...
--------------------------------------------------------------------------------------------
BasicBench_AdaURL_href                  3411 ns         3404 ns       204433 speed=253.506M/s time/byte=3.94468ns time/url=378.251ns url/s=2.64375M/s
BasicBench_AdaURL_aggregator_href       2051 ns         2046 ns       338881 speed=421.819M/s time/byte=2.37068ns time/url=227.322ns url/s=4.39904M/s
BasicBench_AdaURL_CanParse              1431 ns         1425 ns       486000 speed=605.437M/s time/byte=1.6517ns time/url=158.38ns url/s=6.31394M/s
BasicBench_whatwg                       6840 ns         6789 ns       103240 speed=127.114M/s time/byte=7.86693ns time/url=754.351ns url/s=1.32564M/s
BasicBench_CURL                        17156 ns        17093 ns        41000 speed=50.4882M/s time/byte=19.8066ns time/url=1.89923us url/s=526.528k/s
BasicBench_uriparser_just_parse         4627 ns         4595 ns       151417 speed=187.82M/s time/byte=5.32424ns time/url=510.536ns url/s=1.95873M/s
BasicBench_http_parser_just_parse       4273 ns         4262 ns       164956 speed=202.481M/s time/byte=4.93873ns time/url=473.569ns url/s=2.11162M/s
BasicBench_ServoUrl                     9441 ns         9401 ns        75232 speed=91.7962M/s time/byte=10.8937ns time/url=1.04459us url/s=957.318k/s

[lemire]

!!!