* merge branch debian-experimental. * new upstream release. * gitweb: choose appropriate view for file type if a= parameter missing (closes: #410465). * git fetch -q is supported (closes: #423165). * /usr/bin/git transition (thx Ian Beckwith!). * debian/git-core.preinst: new; remove /usr/bin/git alternative if upgrading from versions older than 1:1.5.2~rc3-2. * debian/git-core.prerm, debian/git-core.postinst: remove; no longer handle /usr/bin/git alternative through update-alternatives. * debian/rules: no longer install git program as git-scm.