Show last commit in bzr on page

[Artur Rona]

Ubuntu CVE Tracker has got on the bottom last commit on bzr. Would be nice to add this code to sponsors overview.

[20:07] <kees> ari-tczew: it's a little circuitous, but start here: http://bazaar.launchpad.net/~ubuntu-security/ubuntu-cve-tracker/master/files
[20:07] <kees> and look at Makefile, which includes Makefile.include
[20:08] <kees> in there is:
[20:08] <kees> BZR_COMMIT:=$(shell bzr log --limit=1 --line | cut -d: -f1)
[20:08] <kees> that will basically store the current commit revision number in a Make variable.
[20:08] <kees> and that can get reused when you build out the HTML files.
[20:08] <kees> $(SCRIPTS)/html-export-cve.py --commit $(BZR_COMMIT) $< > $@.tmp
[20:08] <kees> etc
[20:09] <kees> http://bazaar.launchpad.net/~ubuntu-security/ubuntu-cve-tracker/master/annotate/head%3A/Makefile.include shows it