jarnalshell.conf options
tabs=false/true [use the tabbed interface]
keepbookmarks=integer [number of recent files]
pdfrenderer=command line for external pdf renderer
firefox=<browser command> %1
tzadjust=integer [set a different time zone than that for the computer; useful for presentations]
[it isn't clear that the remaining ones do anything useful]
ps2pdf=command line for converting postscript to pdf
pdfconverter=soffice
printpdf=lpr %1
pdftotext=pdftotext -eol unix -layout -f %1 -l %2 %3 %4