Mynde To Functional Hello World

Mynde is now functional, handles the following requests over the Memcached Binary Protocol:
Get (Get, GetK, GetKQ, GetQ), Set (Set, SetQ), Noop, Quit (Quit, QuitQ).

Note that if you do a set than a get immediately on the same connection the set doesn't show up, which is definitely something that needs to be fixed in time.

If you close that connection and open a new one, the value shows up.

Here's what the mynde hello world looks like (running on a debug stigi):
```
$../out/debug/stig/server/stigi --mem_sim --instance_name=mofo --create=false --starting_state=SOLO -la -le --mem_sim_mb=512 --mem_sim_slow_mb=256 &

$./stig/mynde/hello_world.py
Get Key hello: None
$./stig/mynde/hello_world.py
Get Key hello: world
```