Fix minor typos and wording
Change PDF orientation to allow clean duplex print
Hide ornament, add stamp "created with free software"
Improve fold marks
Make PDF merge script more flexible
Replace PDF merge script with Makefile
Merge branch 'master' of gitorious.org:freie-software-handouts/freie-software-handouts into tex_neuentwurf

Conflicts:
	Inkscape/mergepdf.sh