Add a release file for 2.2

Author: gmkurtzer

_posts/releases/2016-10-11-release-2-2.md

@@ -0,0 +1,40 @@
+---
+title:  "Singularity 2.2 release"
+category: releases
+permalink: release-2-2
+targz: "https://github.com/singularityware/singularity/releases/download/2.2/singularity-2.2.tar.gz"
+---
+
+
+It is with great pleasure that I announce the general availability of Singularity version 2.2! Here's what's in store for version 2.2 from your favorite Git clone, download, or distribution vendor:
+
+* A complete rework of the back end source code to allow a much larger feature set, sanity, and facilitate contributions
+* The ability to execute completely unprivileged (does not support Singularity images) (thanks to Brian Bockelman)
+* Container execute by URI support (file, http, https, docker, etc..)
+* Integration with the Docker Registry Remote API (thanks to Vanessa Sochat):
+    * stateless containers running ad-hoc
+    * bootstrapping
+    * importing
+* OverlayFS support - Allows for automatic creation of bind points within containers at runtime (thanks to Amanda Duffy and Jarrod Johnson)
+* Additional container formats supported (directories and archives)
+* New bootstrap definition format to handle much more complicated and intuitive recipes
+* All Singularity 2.x containers continue to be supported with this release.
+
+Additionally I would like to extend thanks to the following organizations for being part of supporting scientific computing with Singularity:
+
+- Lawrence Berkeley National Labratory (http://scs.lbl.gov/)
+- Stanford University (https://srcc.stanford.edu/)
+- San Diego Supercomputing Center (http://www.sdsc.edu/)
+- University of Nebraska-Lincoln (http://www.unl.edu/)
+- Dartmouth (http://pbs.dartmouth.edu/)
+- Yale University (http://www.yale.edu/)
+- University Of Liverpool (http://www.liverpool.ac.uk/)
+- Texas Advanced Computing Center (https://www.tacc.utexas.edu/)
+- Open MPI (http://www.openmpi.org/)
+- Ontropos (http://www.ontropos.com/)
+- Lenovo (http://www.lenovo.com/)
+- Intel (http://www.intel.com/)
+- Amazon (https://aws.amazon.com/)
+- R Systems (http://rsystemsinc.com/)
+
+Release tip: The best way to kill an idea is to take it to a meeting.