Update Ubuntu

- `ubuntu:precise`: 20160330
- `ubuntu:trusty`: 20160323
- `ubuntu:wily`: 20160329
- `ubuntu:xenial`: 20160331.1

library/ubuntu

@@ -5,31 +5,31 @@
 # see also https://wiki.ubuntu.com/Releases#Current
 
 # commits: (master..dist)
-#  - fae14e7 Update tarballs
-#    - `ubuntu:precise`: 20160318
-#    - `ubuntu:trusty`: 20160317
-#    - `ubuntu:wily`: 20160316
-#    - `ubuntu:xenial`: 20160317
+#  - e80db69 Update tarballs
+#    - `ubuntu:precise`: 20160330
+#    - `ubuntu:trusty`: 20160323
+#    - `ubuntu:wily`: 20160329
+#    - `ubuntu:xenial`: 20160331.1
 
-# 20160318
-12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 precise
-12.04: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 precise
-precise-20160318: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 precise
-precise: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 precise
+# 20160330
+12.04.5: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee precise
+12.04: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee precise
+precise-20160330: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee precise
+precise: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee precise
 
-# 20160317
-14.04.4: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 trusty
-14.04: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 trusty
-trusty-20160317: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 trusty
-trusty: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 trusty
-latest: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 trusty
+# 20160323
+14.04.4: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee trusty
+14.04: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee trusty
+trusty-20160323: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee trusty
+trusty: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee trusty
+latest: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee trusty
 
-# 20160316
-15.10: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 wily
-wily-20160316: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 wily
-wily: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 wily
+# 20160329
+15.10: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee wily
+wily-20160329: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee wily
+wily: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee wily
 
-# 20160317
-16.04: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 xenial
-xenial-20160317: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 xenial
-xenial: git://github.com/tianon/docker-brew-ubuntu-core@fae14e72201e4411a7e04c70150238dc79242b29 xenial
+# 20160331.1
+16.04: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee xenial
+xenial-20160331.1: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee xenial
+xenial: git://github.com/tianon/docker-brew-ubuntu-core@e80db696a155f3313939ba243fd41810720005ee xenial