\usepackage{listings} % source code
\usepackage{float} % floating images
\usepackage{lmodern} % Better teletype fonts
\usepackage{textcomp} % Nice listings quotes
\usepackage{pgf-umlsd} % Connection diagrams
\usepackage{listings} % source code
\usepackage{float} % floating images
\usepackage{lmodern} % Better teletype fonts
\usepackage{textcomp} % Nice listings quotes
\usepackage{pgf-umlsd} % Connection diagrams