allow to link to inline rows

This allows to link to proposal pager rows. On inline rows (see #733) it also expands the row. The link is available from the expand button.

The javascript expands the row on page load. If I just change the fragment, no reload is triggered and so the javascript is not executed. This could be fixed using the [hashchange event](https://developer.mozilla.org/en-US/docs/Web/Reference/Events/hashchange).

JQuery's [`:target`](http://api.jquery.com/target-selector/) selector did not work for some reason so I fell back to [window.location](https://developer.mozilla.org/en-US/docs/Web/API/Window.location) which is currently not supported in IE. I guess this is acceptable in this case.