add "Automatic execution" to glossary

doc/chapter/appendix.tex

@@ -17,6 +17,8 @@
         \rowcolor{gray!25}
         \member{align} & See table~\ref{table:bk-variables} & \\
         Extremal layout & Defines in which order the layers are traversed and if a node is aligned with its upper or lower median. & Leftmost lower \\
+        \rowcolor{gray!25}
+        Automatic execution & The state of the \code{AnimationController} where it repeatedly sends step commands with a certain delay & See section~\ref{sec:userInterface} \\
         \\\\
 	\end{longtable}
 	\caption{Glossary for the most difficult terms as we use them.}