Ubuntu 18.04 package list

[jkrauska]

Slight package name change in 18.04

libprocps4-dev -> libprocps-dev

[huikang]

Hi, @jkrauska , which c++ version do you use? I got Floating point exception with c++ version 5.4 on ubuntu 16.04.

[jkrauska]

try ubuntu 18?

[bitcoinbrisbane]

@jkrauska thanks for this and the PR.