Ubuntu 12.04 is out, so add a vagrant config for it.

Replace the 11.04 config, but keep 10.04 to cover the two LTS releases.

maint/vm/ubuntu12.04/Vagrantfile

@@ -1,7 +1,7 @@
 Vagrant::Config.run do |config|
-    config.vm.box = "ubuntu11.04"
+    config.vm.box = "ubuntu12.04"
 
-    config.vm.network :hostonly, "172.19.1.4"
+    config.vm.network :hostonly, "172.19.1.5"
     config.vm.share_folder("tornado", "/tornado", "../../..", :nfs=> true)
 
     config.vm.provision :shell, :path => "setup.sh"

maint/vm/ubuntu12.04/setup.sh

@@ -2,12 +2,6 @@
 
 set -e
 
-# Ubuntu 10.10+ do some extra permissions checks for hard links.
-# Vagrant's nfs shared folders come through with funny uids, but
-# attempts to access them still work despite the visible permissions
-# being incorrect.
-sysctl -w kernel.yama.protected_nonaccess_hardlinks=0
-
 apt-get update
 
 # libcurl4-gnutls-dev is the default if you ask for libcurl4-dev, but it
@@ -26,7 +20,7 @@ python-software-properties
 apt-get -y install $APT_PACKAGES
 
 
-# Ubuntu 11.04 has python 2.7 as default; install more from here.
+# Ubuntu 12.04 has python 2.7 as default; install more from here.
 # The most important thing is to have both 2.5 and a later version so we
 # test with both tornado.epoll and 2.6+ stdlib's select.epoll.
 add-apt-repository ppa:fkrull/deadsnakes
@@ -35,8 +29,6 @@ apt-get update
 DEADSNAKES_PACKAGES="
 python2.5
 python2.5-dev
-python2.6
-python2.6-dev
 python3.2
 python3.2-dev
 "

maint/vm/ubuntu12.04/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27-full, py25-full, py32, py25, py26, py26-full, py27
+envlist = py27-full, py25-full, py32, py25, py27
 setupdir=/tornado
 toxworkdir=/home/vagrant/tox-tornado
 
@@ -18,12 +18,6 @@ deps =
      simplejson
      twisted==11.0.0
 
-[testenv:py26-full]
-deps =
-     MySQL-python
-     pycurl
-     twisted==11.0.0
-
 [testenv:py27-full]
 basepython = python2.7
 deps =