• implement mathins (hack) and mathres for 3.7 and 4.4
• add ^QT for delbol, keep ^Q^? (^Q+backspace but we can’t do
  this for ^H, as ^QH is already used), document only ^QT
• move isrch from ^[S to ^[T (conflict with ^[s for ^S)
• move open from ^[b (WTF?) to ^] matching joe

sponsored by ⮡ tarent

… oops!

  as well as jupprc improvements from since the beginning
• fix various bugs in the rc files and the documentation
• WordStar¹ fixes from https://www.reddit.com/user/crb3

① in non-document mode, of course

pimp and tweak

while “dependant” is correct British English for someone depending
on their liege, “something-dependent” was meant here

but clean it up at least a little

with implizit size_t casting nor memory cleansing

allows us to get rid of the fmtln macro hack for jupp