optimize memory cost while iterating data segments in bitmap
correct using of iterator raw func in bit api
fix select bug
add completion hook
add missing command for CLI completion
change configuration

Config struct now not includes other configs, but shows all

People can see configuration clearly
fix ledis-repair config error
update config
bug fix: argument checking of funtion
update default config
add bin log comment
add client hiredis
Merge pull request #18 from siddontang/c-client-feature

add client hiredis
fix error information
Merge branch 'cli-feature' into develop
fix incorrect document
Merge branch 'develop'