[GSoC 2010] The 5th week

Hi,
    A simple weekly update of the project.

    This week is tesing and bug-fixing week. I have redesign some data
structure of the line level browser and fix several bugs/memory leaks
of it. As you seen, I have post the first series of patches to the
list and waiting for your comments. :)
    For the coming two weeks:
1. Follow the patch series issues;
2. Make --graph works well with line level history browser;
3. Parent rewriting

Thanks!