Added random,horizontal and vertical layour to wordcloud

- Simple mode: 1 paramter with text that will be parsed, using stopwords and each word will be counted
- Advanced: 2 parameters, the first one is the phrase, the second is the total number of occurrences. A third parameter could indicate a link to be added to each word

Also, it supports links in the text labels

This decision was made based on the lack of CORS-enabled SPARQL endpoints, which difficults the use of client-base queries.

Adding explanation when sqlite db is not writable

restoring defaults in LODSPK

add gravity, distance and charge parameter to D3forcegraph template

Now when a component is clicked, the first model and view is opened

The new button in views is hidden, since is very unlikely it will be ever needed in visualbox (compared to LODSPeaKr)

Use of the fragment in the editor's URL to load a component (e.g., when loading http://server/admin/components#myviz, the component "myviz" will be loaded, if exist)