LCS: implement range indexes option.
LCS: implement range indexes option.

ctripcorp/redis,charsyam/redis,soloestoy/redis,oranagra/redis,ctripcorp/redis,PKRoma/redis,antirez/redis,neomantra/redis,oranagra/redis,yossigo/redis,soloestoy/redis,neomantra/redis,neomantra/redis,charsyam/redis,antirez/redis,ofirluzon/redis,PKRoma/redis,oranagra/redis,charsyam/redis,soloestoy/redis,soloestoy/redis,PKRoma/redis,ofirluzon/redis,PKRoma/redis,neomantra/redis,ofirluzon/redis,PKRoma/redis,ofirluzon/redis,ctripcorp/redis,oranagra/redis,yossigo/redis,charsyam/redis,charsyam/redis,antirez/redis,yossigo/redis,yossigo/redis,soloestoy/redis,oranagra/redis,yossigo/redis,antirez/redis,ctripcorp/redis,ofirluzon/redis,neomantra/redis