Bisect plugin updated

[Jeff Licquia]

John Arbash Meinel wrote:
> Generally we have you sign one of these:
> http://bazaar-vcs.org/CopyrightAssignment?highlight=%28copyright%29

Done.

> And send it to Martin.

Done.

> And then copy the license info from any of the other Bazaar source files 
> and put
> it at the top.

And done.

I'll not weigh in on Robert's skepticism, except to note that I'm fine 
either way.