Added missing indexed fields:
* Group reference
* OG Vocabulary
* Node Access

Added extra Facet:
* OG Vocabulary
Replaced the discussions overview page by a Search API powered version.
Added overrides for the FacetApi block titles.
Added extra module to be the glue between Views & the capacity4more profile.
It provides views plugins and handlers that are not hard linked to the capacity4more modules.
Added views handler to include the search_api_sorts block into the header of a view.
Added views handler to include the search_api_sorts block into the header of a view.
Added the "Add a Discussion" & "Sorts" handlers to the header of the Discussions overview.
Exported the default search_api_sorts configuration.
Added the search_api_sorts module to the make file.
Fixed missing dependency + fixed handler to show the "Node Add" button.
Adding tests
Updating demo content:
- Added extra user "alfrednobel".
- Added extra group "Nobel Prize".
- Added discussions in the "Nobel Prize" group.
- Added missing "Topics" to the Discussions.
- Added missing "Type of Discussion" to the discussions.
Granted all users the permission to sort the search_api search results.
Added extra test steps to the "Discussions overview" feature.
Fixed permissions & demo data.
Removed @wip tags.
Added helper class to get a group based on the current context.
Added 2 new facet block types for the Categories & Tags.
Changed the way hierarchical fields are indexed: we now also index all the parent terms as being selected (Group metadata + Region & Countries)
Replaced the sidebar "Og Vocab" facets by the "Categories" & "Tags" facets.
Added new field widget to show the facets grouped by the root level items.