Added helper scripts to carry out 2to3 and testcases on python3

fail2ban-2to3

@@ -0,0 +1,17 @@
+#!/bin/bash
+# This script carries out conversion of fail2ban to python3
+# A backup of any converted files are created with ".bak"
+# extension
+
+set -eu
+
+nonPyFiles="fail2ban-client fail2ban-server fail2ban-regex fail2ban-testcases"
+
+find . \
+    -name "*.py" \
+    -exec 2to3 -w --no-diffs $nonPyFiles {} + \
+    || echo "Fail!" >&2 && exit 1
+
+echo "Success!" >&2
+
+exit 0

fail2ban-testcases-all-python3

@@ -0,0 +1,18 @@
+#!/bin/bash
+# Simple helper script to exercise unittests using all available
+# (under /usr/bin and /usr/local/bin python2.*)
+
+set -eu
+
+failed=
+for python in /usr/{,local/}bin/python3.[0-9]{,.*}{,-dbg}
+do
+	[ -e "$python" ] || continue
+	echo "Testing using $python"
+	$python ./fail2ban-testcases "$@" || failed+=" $python"
+done
+
+if [ ! -z "$failed" ]; then
+	echo "E: Failed with $failed"
+	exit 1
+fi