fix to .html bookmarking after db deletion. Handles a creation of html page if it does not already exist

Revert "fix to handle bookmarked pages which has been deleted from database (.html to empty page when url exists)"

This reverts commit f75e2664.

fix to handle bookmarked pages which has been deleted from database (.html to empty page when url exists)

Loads of fixes. Redesign based around bibo:Document. Added search on person, topic and collection. Timeline on collection started, but broken.

Better prev-next links on Collection. Some changes to static pages. Better handling of searches on index.'

Removed hardcoded links to /lodspeakr folder in classes and components. This fixed the log 404 error

Currently, both formats are supported for backwards compatibility

tested briefly in types

- If Query is a CONSTRUCT and client requests RDF/XML, TTL, NT, JSON -> works as usual
- if query is a CONSTRUCT and client requests HTML
-- Results hang from 'rdf', similar to 'models'

```
{%for s in rdf.subjects%}
  <li>{{s.value}}</li>
{%endfor%}
```

Returns all the subjects. `{{s.value}}`, `{{s.curie}}`, etc.  work the same way as in models

```
{%for p in rdf.ex__alvaro%}
  {{p.value}}
{%endfor%}

```

Returns all the predicates from `ex:alvaro` (the colon is translated to `__`). Assuming the namespace for `ex` is `http://example.org/`, this means all the rpedicates from `http://example.org/alvaro`.

```
{%for o in rdf.ex__alvaro.rdfs__label%}
  {{o.value}}
{%endfor%}

```

returns all the objects from triples <http://example.org/alvaro> rdfs:label ?o

TODO:

- Blank nodes is unclear that are working now
- Language, datatypes, etc. non-existant
- Discussion: Combine all the models into one graph? or name them similar to 'models'? Currently adding more queries crashes
- Probably a bunch of bugs

GUI implemented

TODO: GUI needs work