Rer.solrpush

------------------

- Custom scales view to get images from remote contents (to handle also direction).
[cekk]

------------------

- Add indexers for path infos.
[cekk]

------------------

- Fix elevate logic.
[cekk]
- Add invariant validation for elevate.
[cekk]

------------------

- SolrBrains now can return img tags if the original content has an image.
[cekk]

------------------

- Removed unused view.
[cekk]

------------------

- Add new criteria: solr_portal_types to select a list of portal_types indexed on SOLR.
[cekk]
- Add link to Elevate control panel also in user actions.
[cekk]
- Fix remote elevate conditions.
[cekk]