[LyX/master] This is LyX 2.3

[Georg Baum]

commit f8990ef46998214e539f6552184c515905ee4e1c
Author: Georg Baum <b...@lyx.org>
Date:   Thu Jun 16 20:20:59 2016 +0200

    This is LyX 2.3

diff --git a/development/cmake/scripts/xmingw b/development/cmake/scripts/xmingw
index 868d96b..ec8fcd0 100755
--- a/development/cmake/scripts/xmingw
+++ b/development/cmake/scripts/xmingw
@@ -19,7 +19,7 @@ builddir=$PWD
 # ---------------------------------------------------------
 # set 'versionname' to overwrite generated one based on 'ver'
 #
-ver=2.2
+ver=2.3
 date=`date --utc '+%Y.%m.%d-%H.%M'`
 if [ -z $versionname ]; then
     versionname=LyX$ver-$date