New Query Options tray added

For scope, see: https://issues.apache.org/jira/browse/COUCHDB-2347

Two important things to mention:
1. The "Compact View" button has been removed. I want to discuss with @seanbarclay about whether it should really appear in the tray.
2. There's an outstanding issue (outside this ticket) where the header bar doesn't always show the correct content when navigating from page to page.
I don't really like the blind settings of options like this. I would prefer that the view has a `this.queryParams` instead of `this.options.queryParams`. Its a little pedantic so I apologise for that, but I think it will be neater.