BREAKING CHANGES:

• Global status metrics for "handlers" have been renamed

Other changes:

• [FEATURE] New collector for information_schema.table_statistics (PR #57)
• [FEATURE] New server version metric (PR #59)
• [FEATURE] New collector for information_schema.innodb_metrics (PR #69)
• [FEATURE] Read credentials from ".my.cnf" files (PR #77)
• [FEATURE] New collector for query response time distribution (PR #79)
• [FEATURE] Add minimum time flag for processlist metrics (PR #82)
• [IMPROVEMENT] Collect more metrics from performance_schema.events_statements_summary_by_digest (PR #58)
• [IMPROVEMENT] Add option to filter metrics queries from the slow log (PR #60)
• [IMPROVEMENT] Leverage lock-free SHOW SLAVE STATUS (PR #61)
• [IMPROVEMENT] Add labels to global status "handlers" counters (PR #68)
• [IMPROVEMENT] Update Makefile.COMMON from utils repo (PR #73)
• [BUGFIX] Fix broken error return in the scrape function and log an error (PR #64)
• [BUGFIX] Check log_bin before running SHOW BINARY LOGS (PR #74)
• [BUGFIX] Fixed uint for scrapeInnodbMetrics() and gofmt (PR #81)