[gjs] release: Prepare for 1.55.91

[Philip Chimento <pchimento src gnome org>]

commit 22de6662c9d3d5d0462d0e2a773808dd63875e35
Author: Philip Chimento <philip chimento gmail com>
Date:   Sun Feb 17 17:23:17 2019 -0800

    release: Prepare for 1.55.91

 NEWS | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/NEWS b/NEWS
index 95c146d8..6e42c34e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,16 @@
+Version 1.55.91
+---------------
+
+- The problem of freezing while running the tests using GCC's sanitizers was
+  determined to be a bug in GCC, which was fixed in GCC 9.0.1.
+
+- Closed bugs and merge requests:
+  * gnome-sound-recorder crashes deep inside libgjs [#223, !266, Philip
+    Chimento]
+  * Various maintenance [!267, Philip Chimento]
+  * wrapperutils: Define $gtype property as non-enumerable [!268, Philip
+    Chimento]
+
 Version 1.55.90
 ---------------