[GSoC 2010] The 3 week

Hi all,

    I try to put off the update post from Monday to Friday, because I
want to complete a draft version of the line level history browser
before post, but I should admit I failed. :) Although fail, we are
very near to success. Anyway, in the past week, I have spend all my
time on line range assignment and line diff printing. And now, the
line ranges assignment works well for unchanged part and some of
changed part, for printing stuff, the header output is done, the true
line diff code are in heavy debugging. I think it will cost 1 or 2
days to complete the draft version if everything goes well.

   For the coming week, I will complete the draft version and try to
add parent rewrite code into line level to make it works well with
--graph.