Merge pull request #200 from tianon/ubuntu

Update ubuntu for the same "apt" and "gnupg" vulns

library/ubuntu

@@ -4,14 +4,14 @@
 # see also https://wiki.ubuntu.com/Releases#Current
 # see also http://cdimage.ubuntu.com/ubuntu-core/
 
-12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 precise
-12.04: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 precise
-precise: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 precise
+12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 precise
+12.04: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 precise
+precise: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 precise
 
-14.04.1: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 trusty
-14.04: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 trusty
-trusty: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 trusty
-latest: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 trusty
+14.04.1: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 trusty
+14.04: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 trusty
+trusty: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 trusty
+latest: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 trusty
 
-14.10: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 utopic
-utopic: git://github.com/tianon/docker-brew-ubuntu-core@febe569d532a47c28da4a460eea5331b8dd5f564 utopic
+14.10: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 utopic
+utopic: git://github.com/tianon/docker-brew-ubuntu-core@811c96513afedfb7bf47f73613984462ac8e5354 utopic