#211 simplify sql bench test runner
#211 simplify sql bench test runner
#194 fix gcc 4.8 warnings
#202 allow non-null AND null key index cursor operations
#212 binlog row replication turns the insert ignore optimization off
#213 decrease the i_s_ test race window
update the README.md to 7.1.5
#206 support mariadb 10.0.10 start_bulk_insert api change