bug in method findRoot

[zhangaz1]

case ignor

此处可以统一转成大写或小写在做对比，不然有可能因为大小写不匹配死循环，我为这个问题浪费了半天时间，还以为不支持'./another.js'引用呢，差点就放弃duo了

[stephenmathieson]

english? i don't think any of @duojs/owners speak chinese

[zhangaz1]

1:
root = 'e:\temp';
path = 'e:\Temp\main.js';
then the while loop will endless when path = 'e:',
because: 'e:\temp' != 'e:\Temp'
so: should Ignore path insensitive.

2:
root = 'e:\temp';
path = 'e:\temp\main.js';
then the while loop will endless when path = 'e:',
because: 'e:\temp' != 'e:\temp'
so: should consider the path end of "" or not.

3:
better check the path value Inside the loop, when path === dirname (path) throw an excpetion. otherwise it will endless.

~~my poor english(60% by http://fanyi.baidu.com/translate), I hope you can understand.

[stephenmathieson]

i will try to reproduce this bug, but am worried about the implications on case sensitive systems (unix).