footer will change later, and protocol macros will follow
when called as \teckidsgeometry it just resets stuff that needs fixups after geometry changes; when called as \teckidsgeometry[foo] it calls \geometry{foo} first for you
(still to be discussed later, once we have the rest laid out)
• similar to teckids2pubmat (DIN A4, etc.) • embeds tikz, tikzscale, pgfplots, filecontents • defaults to CC-BY-SA 3.0 (DE) or later • new command \teckidsjahresberichthdr{year1}{year2}% more changes tbd later