switch from memcached to redis
add celery to the project
Merge branch 'stable'
always upload specs file with canonical name (no duplicates)
run specs import in background and paralel
return 404 instead of 500 for products that are no longer present in backend
Merge branch 'stable'
longer product specification value
refactor converting from api product to model product
update product meta on get (to fix missing category id)
return int id for product and category
refactor product fields discovery and save only if updated
remove regex check for int category id
convert category id to int in search args
separate redis db on staging/production