Merge pull request #46 from starkers/patch-1

Update install-sx.sh
install-sx.sh: Arch Linux automatic dependency installation.
crypto for obelisk commands.
added crypto info to config file.
minor install-sx.sh changes.
updated install script.
correct zmq package names on debian.
use package for zmq.
czmqpp now a part of zeromq project.
when removing libzmq use wildcard.
remove zmq and czmq make check lines which always fail easily.
Merge pull request #48 from wozz/master

Add locktime parameter
use obelisk.unsystem.net:8081 as default server