[SCM] Debian packaging for nauty branch, build, updated. debian/2.4tb7-2rc1-4-gbcc55c4

[David Bremner]

The following commit has been merged in the build branch:
commit bcc55c42d03440feb0ce724c572d533dde01b556
Merge: 5ae4288ffcacc7cebcf04aac2a0fd099675b07ab a3cd547d5e3647b26dff09a7d8f1e7d6cfcaff48
Author: David Bremner <bremner at unb.ca>
Date:   Thu Sep 17 09:11:15 2009 -0300

    Merge branch 'master' into build


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Debian packaging for nauty