gettext: update 0.20.2 -> 0.21

Drop add-with-bisonlocaledir.patch as upstream (gnulib, not bison)
now determines the directory from datadir.

(From OE-Core rev: 8a89c77e5b5a7915b9cce4979ee8caa593847e51)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/gettext/gettext-0.21/parallel.patch

@@ -0,0 +1,32 @@
+From 4a2a0a93b469093b60ffd0bec55d33d1e03d4713 Mon Sep 17 00:00:00 2001
+From: Joe Slater <jslater@windriver.com>
+Date: Thu, 7 Jun 2012 16:37:01 -0700
+Subject: [PATCH] instal libgettextlib.a before removing it
+
+In a multiple job build, Makefile can simultaneously
+be installing and removing libgettextlib.a.  We serialize
+the operations.
+
+Upstream-Status: Pending
+
+Signed-off-by: Joe Slater <jslater@windriver.com>
+
+---
+ gettext-tools/gnulib-lib/Makefile.am | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/gettext-tools/gnulib-lib/Makefile.am b/gettext-tools/gnulib-lib/Makefile.am
+index 2126699..d2dd7e4 100644
+--- a/gettext-tools/gnulib-lib/Makefile.am
++++ b/gettext-tools/gnulib-lib/Makefile.am
+@@ -58,6 +58,10 @@ endif
+ # Rules generated and collected by gnulib-tool.
+ include Makefile.gnulib
+ 
++# defined in Makefile.gnulib but missing this dependency
++#
++install-exec-clean: install-libLTLIBRARIES
++
+ # OS/2 does not support a DLL name longer than 8 characters.
+ if OS2
+ libgettextlib_la_LDFLAGS += -os2dllname gtlib