#6 tkdiff should support option to save diffs to html file

[Anonymous]

My company uses tkdiff exclusively in doing code
reviews. So a programmer can compare the old code vs
the proposed new one
using tkdiff. tkdiff should also support an option that
enables it to
save the diff in html format. This'll enable diffs to
be saved while the programmer can continue modifying
the code.

Being able to save diffs also provides a record for the
code review that
was done.