Mark release 0.9.0

bin/update_authors.sh

@@ -1,6 +1,6 @@
 # Combine existing list of authors with everyone known in git, sort, add header.
 tail --lines=+3 AUTHORS > AUTHORS.tmp
 git log --format='%aN' | grep -v abraidwood >> AUTHORS.tmp
-echo -e "List of Acorn contributors. Updated before every release.\n" > AUTHORS
+echo "List of Acorn contributors. Updated before every release.\n" > AUTHORS
 sort -u AUTHORS.tmp >> AUTHORS
 rm -f AUTHORS.tmp