search_api_attachments 8.x-1.0-beta2

This is D8 beta2 release of search_api_attachments module.

This module depends on search_api that is stable, but search_api_attachments is not yet stable and so not recommended to use in production.

Especially, note that there is no data update path for this module's configuration!

This release fixes only some bugs

All commits since the beta1 version:

* Issue #2821884 by StryKaizer, ekes, Leksat, izus: Default excluded extensions not working correctly
* Issue #2773343 by itsekhmistro, lba_emanuel, ekes, wengerk, OlgaRabodzei, izus, chickenofeathers, edysmp, TuWebO, brutzelspeck: FilesExtrator (plugin for @SearchAPIProcessor) configuration form is not displayed
* Issue #2865309 by wengerk, lluisandreu, drunken monkey, izus: Private files content doesn't get indexed