Finally committed.
thank you!
One question: in txt2tags,c line 89, there is a check ... if (line[0] == '°') ...
this one should not be there. I was testing various things to improve the display for a future release. Sorry I didn't notice the warning during the compilation. I'll remove it in the next version.
I'll advertise this on the txt2tags mailing list so I hope better developpers (than me) could join :)