Version 3.4.2

Bug fixes:

• uninstall.php: Change the EP_FILE const to its value. Props felipeelia.
• Fix list features WP CLI command. Props felipeelia.
• Add rel="nofollow" to facet links. Props mlaroy.
• Facets widget: Move
  outside ob_start(). Props kallehauge.
• Load facet scripts and styles only when they are really necessary. Props goaround.
• Index attachments with Protected Content and query for them in media search. Props oscarsanchez.
• Fixed Deprecated field [include] used, expected [includes] instead.. Props dinhtungdu.

Enhancements:

• Add filter for enabling sticky posts. Props shadyvb.
• Add sync kill filter. Props barryceelen.
• Add timeout filters for bulk_index and index_document. Props @oscarsanchez.