Bump version to 3.19.91

Update NEWS.

NEWS

@@ -1,3 +1,22 @@
+3.19.91
+=======
+* location: Ask user only once [Zeeshan; #762559]
+* Fix jiggling when auto-hiding legacy tray [Florian; #747957]
+* Misc. bug fixes [Florian, Michael, Ting-Wei; #762475, #762507, #755659]
+
+Contributors:
+  Zeeshan Ali (Khattak), Michael Catanzaro, Ting-Wei Lan, Florian Müllner
+
+Translations:
+  Мирослав Николић [sr, sr@latin], Piotr Drąg [pl], A S Alam [pa],
+  Artur de Aquino Morais [pt_BR], Daniel Mustieles [es],
+  Chao-Hsiung Liao [zh_TW], Daniel Korostil [uk], Fran Dieguez [gl],
+  Tom Tryfonidis [el], Bernd Homuth [de], Sebastian Rasmussen [sv],
+  Jordi Mas [ca], Piotr Drąg [ga], Cédric Valmary [oc], Gábor Kelemen [hu],
+  Baurzhan Muftakhidinov [kk], Friedel Wolff [af], Marek Černocký [cs],
+  Mingye Wang (Arthur2e5) [zh_CN], Aron Xu [zh_CN], Khaled Hosny [ar],
+  Aurimas Černius [lt], Stas Solovey [ru], Yosef Or Boczko [he]
+
 3.19.90
 =======
 * Correctly identify VPN secret requests [Lubomir; #760999]

configure.ac

@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell],[3.19.90],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
+AC_INIT([gnome-shell],[3.19.91],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
 AX_IS_RELEASE([git-directory])
 
 AC_CONFIG_HEADERS([config.h])
@@ -77,7 +77,7 @@ AC_MSG_RESULT($enable_systemd)
 CLUTTER_MIN_VERSION=1.21.5
 GOBJECT_INTROSPECTION_MIN_VERSION=1.45.4
 GJS_MIN_VERSION=1.39.0
-MUTTER_MIN_VERSION=3.19.90
+MUTTER_MIN_VERSION=3.19.91
 GTK_MIN_VERSION=3.15.0
 GIO_MIN_VERSION=2.45.3
 LIBECAL_MIN_VERSION=3.5.3