TBD. reconfigure IP addresses for Crane.

I found this sentence on README.

3. Compile libevent_paxos.

> cd $MSMR_ROOT/libevent_paxos
> ./mk
> make clean; make  <PLEASE RUN MAKE CLEAN EVERYTIME>

**TBD. reconfigure IP addresses for Crane.**

So, how can I reconfigure the IP addresses in Crane?
