The previous implementation was copy-pasted from a source that did not
allow redistribution or sublicensing. Therefore, I reimplemented the
function myself.
This fixes a regression introduced in
77eab2497a, which moved the heading into a
thead and the file listing into a tbody. Therefore, the .. entry is now
the first entry and has been excluded by the rule that previously
excluded the header.
This shows stripes correctly even after a filter has been entered.
Previously the absolute position (before filtering) has been used to
determine the row colour, which looked weird.
Simon Bruder