Update ubuntu (vivid, wily, xenial)

- `ubuntu:precise`: 20160108
- `ubuntu:trusty`: 20160119
- `ubuntu:vivid`: 20160122
- `ubuntu:wily`: 20160121
- `ubuntu:xenial`: 20160125

library/ubuntu

@@ -5,37 +5,37 @@
 # see also https://wiki.ubuntu.com/Releases#Current
 
 # commits: (master..dist)
-#  - be08b70 Update tarballs
+#  - e406914 Update tarballs
 #    - `ubuntu:precise`: 20160108
 #    - `ubuntu:trusty`: 20160119
-#    - `ubuntu:vivid`: 20151208
-#    - `ubuntu:wily`: 20151208
-#    - `ubuntu:xenial`: 20160119.1
+#    - `ubuntu:vivid`: 20160122
+#    - `ubuntu:wily`: 20160121
+#    - `ubuntu:xenial`: 20160125
 
 # 20160108
-12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e precise
-12.04: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e precise
-precise-20160108: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e precise
-precise: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e precise
+12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c precise
+12.04: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c precise
+precise-20160108: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c precise
+precise: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c precise
 
 # 20160119
-14.04.3: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e trusty
-14.04: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e trusty
-trusty-20160119: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e trusty
-trusty: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e trusty
-latest: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e trusty
+14.04.3: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c trusty
+14.04: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c trusty
+trusty-20160119: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c trusty
+trusty: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c trusty
+latest: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c trusty
 
-# 20151208
-15.04: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e vivid
-vivid-20151208: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e vivid
-vivid: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e vivid
+# 20160122
+15.04: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c vivid
+vivid-20160122: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c vivid
+vivid: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c vivid
 
-# 20151208
-15.10: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e wily
-wily-20151208: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e wily
-wily: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e wily
+# 20160121
+15.10: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c wily
+wily-20160121: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c wily
+wily: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c wily
 
-# 20160119.1
-16.04: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e xenial
-xenial-20160119.1: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e xenial
-xenial: git://github.com/tianon/docker-brew-ubuntu-core@be08b705c023aad665973f374d9a94cf0327497e xenial
+# 20160125
+16.04: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c xenial
+xenial-20160125: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c xenial
+xenial: git://github.com/tianon/docker-brew-ubuntu-core@e406914e5f648003dfe8329b512c30c9ad0d2f9c xenial