Update Jinja2 (Python template library) to 2.7.1

third_party/jinja2/README.chromium

Index: third_party/jinja2/README.chromium
diff --git a/third_party/jinja2/README.chromium b/third_party/jinja2/README.chromium
index 8babd691e310c9f8852745bc055e584d649a730f..9ab2426dbdd642a2d5ecb4959d98f96d2992381d 100644
--- a/third_party/jinja2/README.chromium
+++ b/third_party/jinja2/README.chromium
@@ -1,7 +1,7 @@
 Name: Jinja2 Python Template Engine
 Short Name: jinja2
 URL: http://jinja.pocoo.org/
-Version: 2.6
+Version: 2.7.1
 License: BSD 3-clause License
 License File: NOT_SHIPPED
 Security Critical: no
@@ -9,7 +9,17 @@ Security Critical: no
 Description:
 Template engine for code generation in Blink.
 
+Source: https://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.7.1.tar.gz
+MD5: 282aed153e69f970d6e76f78ed9d027a
+SHA-1: a9b24d887f2be772921b3ee30a0b9d435cffadda
+
 Local Modifications:
 This only includes the jinja2 directory from the tarball and the LICENSE and
-AUTHORS files. Unit tests have been removed. Additional chromium-specific files
-are this README.chromium and OWNERS.
+AUTHORS files. Unit tests (testsuite directory) have been removed.
+Additional chromium-specific files are:
+* README.chromium (this file)
+* OWNERS
+* install script (get_jinja2.sh)
+* files of hashes (MD5 is also posted on website, SHA-512 computed locally).
+Script checks hash then unpacks archive and installs desired files.
+Retrieve or update by executing jinja2/get_jinja2.sh from third_party.