WebSearch: inverted collection scores
- Updates how the score value from collection_collection is used, the lower the score the higher the position. Useful for running Invenio 1 and Invenio 2 out of the same database. (PR #2058)
- Updates democfgdata.sql to use the new score.
- Provides an upgrade recipe to update the collection_collection relationships. It changes the score setting its value from 0 to the number of "son collections".
Signed-off-by: Esteban J. G. Gabancho <esteban.gabancho@gmail.com>
Tested-by: Tibor Simko <tibor.simko@cern.ch>