[#1426140] added: choose between AND and OR for search
[#2533812] by natew: change hook_custom_search_filter to pass form_state by reference
[#2514716] by timmillwood: added composer.json
[#2462941] fixed by ngocketit: use $types array as associative
Replace Drupal\Component\Utility\String by SafeMarkup
[#2425059] fixed: use OR instead of AND for Solr type filter
Simplified definition format for sequences in configuration schemas
[#2361843] : Remove usage of drupal_substr()
[#2429531] : reselect types and languages in the advanced form, and adds Language neutral to the list.
Invert previous vids-machine names association.
Store vids - machine names association for those upgrading to D8 or Backdrop.
Updated Readme.txt with correct path to settings.
[#2424067] fixed: added role="search" to search form.
[#2423145] by cossimo,jdanthinne: don't translate submit button if using an image.
[#2420757] by FrancescoUK,jdanthinne: test array before looping.
Saves block custom settings.
File system functions are now methods on the 'file_system' service.
Updated Search pages settings route.
Configuration objects by default are immutable.
[#2365273] by omaster: added some hooks to integrate with new submodules
Backport core Search result preprocessing and customize it
Replace url() and l() functions with Url and LinkGenerator classes
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