Trash can aligned correnctly

Closes COUCHDB-2279
Fauxton: Implement a filter for changes

Move the filter as a common component to Components.

- Change some <%= to <%- as <%= is not needed
- Filters can have tooltips
- Filtering is case insensitive

Closes COUCHDB-2158
Fix link for new design doc
Add tests for documents/views-changes

Closes COUCHDB-2282