Implement search tool

Take control of the annotator-store authorization using Pyramid ACLs.

The dev server now explicitly listens on localhost. That means that
if you wish to expose this publicly you will need to set up a public-
facing proxy server, such as nginx, or create/modify a .ini file.

The Procfile still uses 0.0.0.0, which means that pyramid will fall
back to reading the HTTP Host header for the server name. In Procfile
deployments like heroku and dokku it is assumed that this header is
trusted and fixed in upstream reverse proxies.

Fixes #497.

and using $element.find() instead of $()

- Font is bold, size: 11px

(Google docs: 1b)

Removed debug messages

The key is: 'hyp_page_search_query'
Upon VS initialization, if available, the query is retrieved and feed to VS.

- Using '-' instead of '_'
- sidebar does not resize when search bar grows

common.scss contains our overrides for it.