Prepare for 2018.3, don't tag version

release_builder/create_changelog.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+cat << EOF
+Changelog for FlightGear from $1 to $2
+==========================
+EOF
+for submodule in simgear flightgear fgdata; do
+cat << EOF
+
+$submodule
+--------------------------
+EOF
+  pushd  $submodule > /dev/null 2>&1
+    git log --pretty=format:%s version/${1}..version/${2} |while read f; do 
+      echo "* $f"; 
+    done 
+  popd 
+done