Update ubuntu-upstart to include all and only the supported versions of ubuntu

library/ubuntu-upstart

@@ -1,31 +1,11 @@
 # maintainer: Tianon Gravi <[email protected]> (@tianon)
 
-# see also https://wiki.ubuntu.com/Releases#Current
+12.04: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/12.04
+precise: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/12.04
 
-latest: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/14.04
-trusty: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/14.04
-14.04: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/14.04
-# EOL: Apr 2019
+14.04: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/14.04
+trusty: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/14.04
+latest: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/14.04
 
-precise: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/12.04
-12.04: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/12.04
-# EOL: Apr 2017
-
-# TODO lucid/10.04 support
-#lucid: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/10.04
-#10.04: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/10.04
-# EOL: Apr 2015
-
-# ---
-
-quantal: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/12.10
-12.10: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/12.10
-# EOL: Apr 2014
-
-raring: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/13.04
-13.04: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/13.04
-# EOL: Jan 2014
-
-saucy: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/13.10
-13.10: git://github.com/tianon/dockerfiles@c4f86111caa8c8eab8e1b3a58cdebcf86807169c sbin-init/ubuntu/upstart/13.10
-# EOL: Jul 2014
+14.10: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/14.10
+utopic: git://github.com/tianon/dockerfiles@4d24a12b54b75b3e0904d8a285900d88d3326361 sbin-init/ubuntu/upstart/14.10