[gjs] release: Prepare for 1.49.91

[Philip Chimento <pchimento src gnome org>]

commit 61887633dca6d3fcd3b990646958adeddc4f0379
Author: Philip Chimento <philip endlessm com>
Date:   Mon Aug 21 16:16:44 2017 -0700

    release: Prepare for 1.49.91

 NEWS |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 2e865e6..63b4ce2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,11 +1,20 @@
-NEXT
-----
+1.49.91
+-------
 
 - Deprecation: The private "__name__" property on Lang.Class instances is
   now discouraged. Code should not have been using this anyway, but if it did
   then it should use the "name" property on the class (this.__name__ should
   become this.constructor.name), which is compatible with ES6 classes.
 
+- Closed bugs:
+
+  * Use ES6 classes [#785652, Philip Chimento]
+  * A few fixes for stack traces and error reporting [#786183, Philip Chimento]
+  * /proc/self/stat is read for every frame if GC was not needed [#786017,
+    Benjamin Berg]
+
+- Build fix [Philip Chimento]
+
 Version 1.49.90
 ---------------