Handbook: some updates

- adapt the "quick start" chapter to eWoms
- remove the dumux logo from the front page
- remove the "flow of things" and "tipps and tricks" chapters:
  - the former was not useful, IMHO but quite a burden to update and
    the latter rather belongs to the online documentation (wiki?)
- update the flowchart showing the layout of the source tree

doc/handbook/getting-started.tex

@@ -6,3 +6,8 @@ Then a quick start guide for the first \Dumux experience is provided.
 \input{quick-install}
 \input{quickstart-guide}
 \input{parameterTree}
+
+%%% Local Variables: 
+%%% mode: latex
+%%% TeX-master: "ewoms-handbook"
+%%% End: