Add-ons Enhanced Search Improvements 1.3.0

A Collection of improvements to XF's Enhanced Search (Elastic Search). Does NOT work with MySQL search.

• Support connecting to ElasticSearch via HTTPS
• range_query search DSL
  • allows arbitrary range queries for numerical data
• Allow users to select the default search order independent for the forum wide setting.
• Per content type weighting
• Adds Elastic Search information to the AdminCP home screen.
• Enhanced Search Syntax (disabled by default)
  • The simple_query_string supports the following special characters:
    • + signifies AND operation
    • | signifies OR operation
    • - negates a single token
    • " wraps a number of tokens to signify a phrase for searching
    • * at the end of a term signifies a prefix query
    • ( and ) signify precedence
    • ~N after a word signifies edit distance (fuzziness)
    • ~N after a phrase signifies slop amount
  • In order to search for any of these special characters, they will need to be escaped with \.

Note; this was a semi-private add-on used for a month before this public release.