command  "LINDEX"  not working!

Hi.
I try use vedis but got some wrongs :(

``` c
>>>LPUSH name a1 a2 a3
[3]
>>>LINDEX name 0
[a1]
>>>LPOP name
[a1]
>>>LINDEX name 0
[nil]    //Here should be "a2"
>>>LINDEX name 0
[nil]    //Here should be "a2"
>>>LINDEX name 0
[nil]    //Here should be "a2"
>>>LLEN name
[2]
```

the command  "LINDEX" must be wrong after the “LPOP” .
