[merge] bzr re-sign update

[John A Meinel]

I updated 'bzr re-sign' so that it can take more than one revision id as
an argument.

This allows me to do:

find .bzr/revision-store// -name "john at arbash-meinel.com*" \
	| sed 's/.*\/\/..\///'
	| xargs ../bzr/bzr-jam-pending/bzr re-sign

(Before you could do the same thing, but had to use xargs -n1, which
meant bzr was being spawned 600 times, rather than just once (or maybe a
few depending on the command line length)).

Anyway, the changes are on my jam-pending branch. It comes with tests,
including refactoring the old blackbox re-sign tests.

I'm seeking a +1 so I can put it into integration.

John
=:->
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