ie7-8 regexp fall

[ludinov]

falls in ie7-8

https://github.com/angular-ui/router/blob/ui-states/src/urlMatcherFactory.js#L76
https://github.com/angular-ui/router/blob/ui-states/src/urlMatcherFactory.js#L77

while ((m = placeholder.exec(pattern))) {
    id = (m[1] != null) ? m[1] : m[2];
    regexp = (m[3] != null) ? m[3] : '[^/]*';

(m[3] != null) works differently in ie7-8 and other browsers ...

[ksperling]

Should be fixed now, can you please retest.

[ludinov]

Yup - now it works.
IE7&8 have another problems with deeply nested views - will investigate later..