v5.1.2 Merge upstream + Reintroduce Xola specific changes

XOL-5650 Resync with upstream and handle Xola's custom changes (#9)

Co-authored-by: Maksim Kotlyar <[email protected]>
Co-authored-by: Tobias Schultze <[email protected]>
Co-authored-by: Gabriel Caruso <[email protected]>
Co-authored-by: Nicolas Assing <[email protected]>
Co-authored-by: Karel <[email protected]>
Co-authored-by: Vic D'Elfant <[email protected]>
Co-authored-by: Bartek Bujnowski <[email protected]>
Co-authored-by: Łukasz Chruściel <[email protected]>
Co-authored-by: Florent Blaison <[email protected]>
Co-authored-by: Manuel Kiessling <[email protected]>
Co-authored-by: Christophe Coevoet <[email protected]>
Co-authored-by: Floran Brutel <[email protected]>
Co-authored-by: Jon Gotlin <[email protected]>
Co-authored-by: Ola Persson <[email protected]>
Co-authored-by: Mikołaj Król <[email protected]>
Co-authored-by: Jérôme Vasseur <[email protected]>
Co-authored-by: Jais Djurhuus-Kempel <[email protected]>
Co-authored-by: Andrey Bolonin <[email protected]>
Co-authored-by: Pascal Borreli <[email protected]>
Co-authored-by: Karel <[email protected]>
Co-authored-by: Jan Domanski <[email protected]>
Co-authored-by: Dmitry Balabka <[email protected]>
Co-authored-by: Fran Moreno <[email protected]>
Co-authored-by: David Buchmann <[email protected]>
Co-authored-by: Dmitry Balabka <[email protected]>
Co-authored-by: damijank <[email protected]>
Co-authored-by: François-Xavier de Guillebon <[email protected]>
Co-authored-by: Christophe Deliens <[email protected]>
Co-authored-by: Tarasovych <[email protected]>
Co-authored-by: Artem Lopata <[email protected]>
Co-authored-by: bastien <[email protected]>
Co-authored-by: Jamal <[email protected]>
Co-authored-by: zaartix <[email protected]>
Co-authored-by: Anne van de Venis <[email protected]>
Co-authored-by: Benjamin Georgeault <[email protected]>
Co-authored-by: Aaron Scherer <[email protected]>
Co-authored-by: Etienne Dauvergne <[email protected]>
Co-authored-by: Loïc Vernet <[email protected]>
Co-authored-by: Jan Schädlich <[email protected]>
Co-authored-by: lucasbrtd <[email protected]>
Co-authored-by: Jeroen Noten <[email protected]>
Co-authored-by: Lukas Kahwe Smith <[email protected]>
Co-authored-by: ZeFr0g <[email protected]>

v4.0.0 Merge upstream

Upgrade to v4.0 of FriendsOfSymfony/FOSElasticaBundle

Allow extending elastica command

Merge pull request #2 from rushi/CS-304

CS-304 Updates to the elastica populate command to support custom filters