Update select2 to v4.0.3

Sign contributors.txt
Update CHANGES.txt
Pylons
diff --git a/CHANGES.txt b/CHANGES.txt
@@ -1,7 +1,7 @@
 2.0.2 (unreleased)
 ------------------

- Nothing changed yet.
+- Updated Select2 widget JavaScript


 2.0.1 (2016-10-25)
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
@@ -126,3 +126,4 @@ Contributors
 - Steve Piercy, 2016/02/19
 - Mikko Ohtamaa 2016/06/01
 - Martin Peeters 2016/10/22
+- Mikko Kolehmainen 2016/11/02
diff --git a/deform/static/select2/LICENSE b/deform/static/select2/LICENSE
diff --git a/deform/static/select2/LICENSE.md b/deform/static/select2/LICENSE.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2012-2015 Kevin Brown, Igor Vaynberg, and Select2 contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/deform/static/select2/select2-spinner.gif b/deform/static/select2/select2-spinner.gif