Merge branch 'pmaniora_hived_tavern_tests' into 'master'

.gitignore

...count_by_key_api_patterns/get_key_references/gtg.pat.json

...nt_by_key_api_patterns/get_key_references/gtg.tavern.yaml

..._by_key_api_patterns/get_key_references/multiple.pat.json

..._key_api_patterns/get_key_references/multiple.tavern.yaml

..._by_key_api_patterns/get_key_references/steemit1.pat.json

..._key_api_patterns/get_key_references/steemit1.tavern.yaml

...story_api_patterns/enum_virtual_ops/first100k.tavern.yaml

..._api_patterns/get_account_history/default_val.tavern.yaml

...api_patterns/get_account_history/only_account.tavern.yaml

...y_api_patterns/get_account_history/only_limit.tavern.yaml

hived/tavern/block_api_patterns/get_block/milion.pat.json

hived/tavern/block_api_patterns/get_block/milion.tavern.yaml

...tavern/block_api_patterns/get_block/non_existing.pat.json

...ern/block_api_patterns/get_block/non_existing.tavern.yaml

hived/tavern/block_api_patterns/get_block/one.pat.json

hived/tavern/block_api_patterns/get_block/one.tavern.yaml

...avern/block_api_patterns/get_block_header/milion.pat.json

...rn/block_api_patterns/get_block_header/milion.tavern.yaml

...block_api_patterns/get_block_header/non_existing.pat.json