fixed typo
Merge pull request #79 from GovWizely/yury/tariff-rates-mappable-fix

Fixed tariff rates mapping typo
Added rspec for check zero result of trash-contained queries
Merge pull request #78 from GovWizely/yury/trash-string-search-hadling

Added rspec for check zero result of trash-contained queries
Added support for IM mapping for market research endpoint and importer. The requests to IM mocked by VCR