fix(uiView): allow interpolated ui-view names

[christopherthielen]

Made internal function getUiViewName allow interpolated values.
Added test for issue #1324

Closes #1324

[christopherthielen]

@nateabele @timkindberg do we support interpolated name, i.e., <ui-view="fo{{var}}"/>? I've always been unsure on that point. See:

https://github.com/christopherthielen/ui-router/compare/issue-1324?expand=1#diff-98cb61fc2fd982fbc899b65f857abbbbR426

[nateabele]

@christopherthielen I don't see a compelling reason not to support it. Having said that, I don't think <ui-view="foo{{var}}"/> is valid syntax. It'd either have to be <div ui-view="foo{{var}}"/> or <ui-view name="foo{{var}}"/>.

Patch looks good, btw.

[christopherthielen]

yeah, oops on the invalid example. I was basing my question about interpolated ui-view name on the comments in #395. With that cleared up, I'll merge this in.

edit: I just realized 395 is for ui-sref, not ui-view.