[gnome-shell-extensions] Bump version to 3.15.90

[Florian Müllner <fmuellner src gnome org>]

commit 36ce1b0a79426f79cc3a4204c994a249bb761aa5
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Feb 20 19:32:30 2015 +0100

    Bump version to 3.15.90
    
    To go along GNOME Shell 3.15.90.

 NEWS         |    6 ++++++
 configure.ac |    2 +-
 2 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index f0e20aa..4f3f17e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+3.15.90
+=======
+* classic: Visual refresh based on new shell theme
+* window-list: Adjust for gnome-shell changes
+* updated translations (an, el, eo, eu, fr, he, is, sv, tr)
+
 3.15.4
 ======
 * window-list: Improve interaction with system modal dialogs
diff --git a/configure.ac b/configure.ac
index 524f5bc..8a4175d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell-extensions],[3.15.4],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell&component=extensions])
+AC_INIT([gnome-shell-extensions],[3.15.90],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell&component=extensions])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([config])