Overhaul view and sort behavior

Big changes to view, sort, routing, filtering, etc, etc, etc...

Todo
-------
- [x] stream search -- race between $scope.updater and stream controller, need to send the filter
- [x] page search -- simple matter of fixing the ugly ng-show conditions at the bottom of the viewer template perhaps with more verbose, obvious variables, or scope/controller functions to abstract the route details from the template a bit
- [x] Check on https://github.com/hypothesis/h/pull/1436#discussion_r16705832 (leave as is 2014-08-29)
- [x] Restore "no results for “query”" message.
- [x] Annotations don't watch for changes
- [x] forced login -- a comment about ideas for that [here](https://github.com/hypothesis/h/issues/1020#issuecomment-53400218)

1cc48fa0675d87055481ed136551d75e5a9d9faf

On Tue, Sep 16, 2014 at 5:41 AM, Aron Carroll <notifications@github.com>
wrote:

> In h/static/styles/threads.scss:
>
> >  $thread-padding: 1em;
> >  $threadexp-width: .6em;
> >
> > +.stream-list {
> > +  & > * {
> > +    margin-bottom: .72em;
> > +  }
> > +
> > +  .card-emphasis {
> > +    @include box-shadow(6px 6px 8px -2px $gray-light);
>
> No need for the mixin here, box-shadow is supported by all browsers.
>
> http://caniuse.com/#feat=css-boxshadow
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/hypothesis/h/pull/1436/files#r17598095>.
>