Sync multibulk

Added synchronous methods for getting bulk replies.
Ah,... I get it know.
This will work, but only under some circumstances. Try to add a lot of network latency to your redis connection and this code breaks.

You are making a false assumption about which data has been received in the queue of the ```MultiBulkReply```, before going on to ```todict```. Probably,  all data is returned in one IP packet. (certainly in the case of localhost.) Which means that all the data was passed through the parser and added to the queue at the same time the ```MultiBulkReply``` was created.
But of course, this is not guaranteed, and the code will fail in case of network fragmentation or larger packets.

I hope you understand.