* packaging/deb/rules, packaging/deb/buildpkg,
  packaging/deb/changelog, packaging/rpm/buildpkg,
  packaging/rpm/amanda.spec: Change version to 2.6.1b2.


git-svn-id: https://amanda.svn.sourceforge.net/svnroot/amanda/amanda/branches/amanda-261@1535 a8d146d6-cc15-0410-8900-af154a0219e0