v1.12.0

Features

• added auth command (#160)
• added bgrewriteaof command (#161)
• added save command (#162)
• added lastsave command (#163)
• added bgsave command (#164)
• added getrange command (#165)
• added echo command (#166)
• added randomkey command (#167)
• added role command (#168)
• added flushall command (#169)
• added ping command (#170)
• added persist command (#171)
• added expireat command (#172)
• added pttl command (#173)
• added hkeys command (#174)
• added setex command (#175)
• added pexpireat command (#176)
• added hlen command (#177)
• added pexpire command (#178)
• added psetex command (#179)