Merge branch 'pmaniora_database_api_separate_tests' into 'master'

...tabase_api_negative/find_comments/too_much_data.orig.json

...atabase_api_negative/find_comments/too_much_data.pat.json

...base_api_negative/find_comments/too_much_data.tavern.yaml

.../tavern/database_api_negative/find_votes/author.orig.json

...d/tavern/database_api_negative/find_votes/author.pat.json

...avern/database_api_negative/find_votes/author.tavern.yaml

...avern/database_api_negative/find_votes/bad_data.orig.json

...tavern/database_api_negative/find_votes/bad_data.pat.json

...ern/database_api_negative/find_votes/bad_data.tavern.yaml

...tavern/database_api_negative/find_votes/no_data.orig.json

.../tavern/database_api_negative/find_votes/no_data.pat.json

...vern/database_api_negative/find_votes/no_data.tavern.yaml

...avern/database_api_negative/find_votes/permlink.orig.json

...tavern/database_api_negative/find_votes/permlink.pat.json

...ern/database_api_negative/find_votes/permlink.tavern.yaml

...list_comments/by_author_last_update_no_permlink.orig.json

...t_comments/by_author_last_update_post_not_found.orig.json

..._negative/list_comments/by_cashout_time_no_date.orig.json

...i_negative/list_comments/by_cashout_time_no_date.pat.json

...egative/list_comments/by_cashout_time_no_date.tavern.yaml