Use HandlerInterceptor to give views URL constants

Use the config values in the views by adding the urls to each handler.  Add to each handler by using a interceptor.
If there's an access copy we can display a thumbnail of it
update to latest amberdb
Do the same to the access copy screen
Make thumbs smaller & fix broken work link in copy
fix css error in copy preview.
Allow preview on master
Merge pull request #297 from nla/hr-image-previews

Sweet image previews
merge master
Merge branch 'js-ALTO-import' of github.com:nla/banjo into js-ALTO-import