ticket:324 reworked wsapi app
ticket:324 removed broken imports
ticket:325 fixed tests after api change
ticket:325 fixed tests, removed core/parasers.py
ticket:325 fixed request_details
ticket:325 added test for add_files_to_cart_by_query_task
ticket:325 reworked tests cache
Merge branch 't325_use_mock_for_testing_instead_of_copying_wsapi_cache'
ticket:325 cosmetic improvenets in parsers.py