Merge branch 'release/0.5.5' into develop
fix delete api method
update version
split queryset generation to different method
init request parser model to parse parameters
update readme
update accepted content type
update test runner in Makefile. Use .env environment by default
use statuses from config
update test command. It is used in tox.
add changelog comments
update version
Merge branch 'release/0.5.7'
Merge branch 'master' of github.com:pavlov99/jsonapi