Fix the date formatting for slovenien. This will result in a server e… …rror.

Reimplement in-memory cache for product-details. 

Merge pull request mozilla#1810 from mozilla/amo-validator-1.10.20 Update amo-validator to 1.10.20

Merge pull request mozilla#1739 from andymckay/bump-validator bump to 1.10.19

and a management command to fix up the db 

Merge pull request mozilla#1690 from EnTeQuAk/amo-validator-11018 Upgrade amo-validator to 1.10.18 and cssutils to 1.0.1

Restore default retry settings for chord_unlock 

Don't try to reclaim a GUID if we're uploading a non-extension 

Unlock the magic of chord_unlock (fix: routing) This regressed in the module refactor. We need the chord_unlock task to be in the same queue as other tasks that use it.

Tame chord_unlock retries, mitigate inifinite loop