* add redis for production cache store

* add basic cache on static files

* cache key blob

* merge

* remove cache on everything except blobs

* fix

* fix

* optimization backlink

* fix

* fix

* wip

* db

* analysis

* nice

* i18n

* fr

* en

* fix

* make a hugo accessor

* fat

* missing languages #1819

* in the right order

* rename Permalinkable

* categories

* static

* permalink

* fix

* comment wrong tests

* fix

* climate

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

* wip

* js pourri

* wip

* wip

* fix

* wip

* wip

* better

* height

* better

* parenthesis

* climate

* climate

* note

* wip

* climate order

* links

* quite clean

* syntax

* fix

* Clean

* fix

* better

* moved sanitizer config in initializer

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

* lock website for background jobs

* remove byebug

* fix

* fix

* if...else instead of begin...rescue

Co-authored-by: Arnaud Levy <arnaud.levy@noesya.coop>

* fix

* fix

* fix

* fix

* fix

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Co-authored-by: Arnaud Levy <arnaud.levy@noesya.coop>

* wip

* categories

* taxonomies

* wip

* done (but not properly tested)

* fix

* set slug after migration

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

* Fix #1735

* fix

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

* Fix #1781

* rename

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

* fix

* better ?

* fix

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Co-authored-by: Sébastien Gaya <sebastien.gaya@gmail.com>

add transaction to prevent intermediary crash if parent menu_item has been destroyed by another simulatnous generation (#1769)

* icons

* frozen