Adding upstream version 1.2.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

scripts/make-release.sh

@@ -0,0 +1,26 @@
+#! /bin/bash
+
+set -e
+
+if [ ! -d .git ]; then
+    echo 'Run this script from root of repository' 1>&2
+    exit 1
+fi
+
+executable=selfupdate-example
+
+rm -rf release
+gox -verbose ./cmd/$executable
+mkdir -p release
+mv selfupdate-example_* release/
+cd release
+for bin in *; do
+    if [[ "$bin" == *windows* ]]; then
+        command="${executable}.exe"
+    else
+        command="$executable"
+    fi
+    mv "$bin" "$command"
+    zip "${bin}.zip" "$command"
+    rm "$command"
+done