Tagged release v0.6.0

f690e61 Fix getting tender period end_time on procedure creation
c77b8a1 Correct response message suggest incorrect auction.startDate
87a7e0b Fix tests according to new bid creation flow
1c274cb Fix fixture according to new bids creation
83403cc Change bid creation and update according to new import rules
db37607 Add import roles for bid model and nested models
d5a9261 Chnage spec saving
4f8aeb1 Rules for correct importing awards
73d43f7 Update tests
449770a Add owner field assignment
5798ca1 Implement procedure import rules
76a5573 Corrected typo in Award model
1cd1c9a Delete docker networks in cleanup ci job
0599a93 Add default params to Procedure to_primitive method
652c245 Add default status draft to bid model
ad5f6ee Separate role chains for export and import
dfd568a Fix error response text on complete endpoint
c3fb178 Fixes #153 with addition validation bid value amount
cc451e0 Auction start date is required on creating procedure
682919b Correct init auction start date when time takes for it from request not from spec
2534340 Add pending.admission status to award model choices
c9ad9a0 Fix auction startDate on tests
2487cbb Skip length validation for empty locale values in the AllLangMultilingualStringType type
fed7521 Owner field has no rules on export
4ec1115 Make TWINE_REPOSITORY_URL global var for ci
a9da4a4 Add package-swagger-client job
b824571 Add generate-swagger-client job
ae3de05 Add swagger.json to artifacts
212e42b Add swagger doc tests with swagger.json downloading
7b18897 Fix version for test image