Use document class for first exercise sheet

Signed-off-by: Daniel Borchmann <daniel.borchmann@tu-dresden.de>

htw-201516/uebung-1.tex

@@ -1,45 +1,8 @@
-\documentclass[ngerman,parskip=half-]{scrartcl}
-
-%%%
-
-\usepackage[T1]{fontenc}
-\usepackage[utf8]{inputenc}
-\usepackage{babel}
+\documentclass{latex-htw-uebung}
 
 \title{1. Übungsblatt}
 \date{9.\ November 2015}
 
-\usepackage[scale=0.95]{tgpagella}
-\usepackage[scale=0.92]{tgheros}
-\usepackage[scaled=0.83]{beramono}
-\usepackage{mathpazo}
-
-\usepackage{listings,xcolor}
-\lstset{language=[LaTeX]TeX,
-  basicstyle=\ttfamily,
-  keywordstyle={\color{blue}\bfseries},
-  frame=tb,
-  extendedchars=true,
-  literate=%
-    {ä}{{\"a}}1
-    {ö}{{\"o}}1,
-  numbers=left,
-  numberstyle=\tiny,
-  stepnumber=1,
-}
-
-\usepackage{etoolbox}
-\BeforeBeginEnvironment{lstlisting}{\medskip}
-\AfterEndEnvironment{lstlisting}{\medskip}
-
-\usepackage{tikz}
-\usepackage{graphicx}
-\usepackage{url}
-
-\pagestyle{empty}
-
-%%%
-
 \begin{document}
 
 \begin{tikzpicture}[overlay]