[sushi] release: prepare for 3.15.90

[Cosimo Cecchi <cosimoc src gnome org>]

commit 5656bf0e615ea12b0640f29e3e11850aa2b1c4cc
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Mon Mar 9 14:53:21 2015 -0700

    release: prepare for 3.15.90

 NEWS         |    9 +++++++++
 configure.ac |    2 +-
 2 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index dc3b990..0157d12 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,12 @@
+3.15.90 - "Mexican Bus"
+=======================
+
+- Fix deadlock with recent clutter/clutter-gtk
+- Don't require a parent window
+- Port HTML viewer to WebKit2 (Marcos Chavarría Teijeiro)
+- Fix margins in RTL (Yosef Or Boczko)
+- Fix toolbar icons for RTL (Yosef Or Boczko)
+
 3.12.0 - "Hippie Hill"
 ======================
 
diff --git a/configure.ac b/configure.ac
index 0f9f741..c397daa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl -*- mode: m4 -*-
 AC_PREREQ(2.63)
-AC_INIT([sushi],[3.12.0],[],[sushi])
+AC_INIT([sushi],[3.15.90],[],[sushi])
 
 AC_CONFIG_HEADERS([config/config.h])
 AC_CONFIG_SRCDIR([src/main.c])