修复用url pathComponents 解释的时候出现的bug

[xcxcxc]

上次修改成用 [[NSURL URLWithString:route] pathComponents] 出现了一个bug....
NSSRL 和 NSString 的pathComponents 开头是2个"//" 的结果居然是不同的...@_@

po [[NSURL URLWithString:@"//gamevideodetail/53f44b23aa590571d70c9ce2"] pathComponents]
<__NSArrayM 0xeb71230>(
/,
53f44b23aa590571d70c9ce2
)

po [[NSURL URLWithString:@"/gamevideodetail/53f44b23aa590571d70c9ce2"] pathComponents]
<__NSArrayM 0xd7eeae0>(
/,
gamevideodetail,
53f44b23aa590571d70c9ce2
)

po [@"/gamevideodetail/53f44b23aa590571d70c9ce2" pathComponents]
<__NSArrayM 0xd3521f0>(
/,
gamevideodetail,
53f44b23aa590571d70c9ce2
)

po [@"//gamevideodetail/53f44b23aa590571d70c9ce2" pathComponents]
<__NSArrayM 0xd38d6c0>(
/,
gamevideodetail,
53f44b23aa590571d70c9ce2
)

[pyrou]

This fix introduced a new bug :

po [[NSURL URLWithString:@"/test/25?param=value"] pathComponents]
<__NSArrayM 0x7facb5930300>(
/,
test,
25
)

po [@"/test/25?param=value" pathComponents]
<__NSArrayM 0x7facb25ceeb0>(
/,
test,
25?param=value
)

That will not match the route /test/:id

[xcxcxc]

xcxcxc@118cf7d

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