Add version bumping script

utils/bump-version.sh

@@ -0,0 +1,23 @@
+#|/usr/bin/env sh
+
+set -e
+
+script_dir=$(dirname -- "$(readlink -f "$0")")
+root_dir=$script_dir/..
+
+cwd=$(pwd)
+cd "$root_dir"
+
+version=$(head -n 1 docs/CHANGELOG.md | cut -f 1 -d ' ')
+
+sed -i -E 's/^version = .+$/version = "'"$version"'"/' Cargo.toml
+cargo build
+git add Cargo.toml Cargo.lock docs/CHANGELOG.md
+git commit -m "Bump to v$version"
+git tag -a v"$version" -m "$(utils/generate_changelog.sh)"
+
+git push
+git push mandibles
+cargo publish
+
+cd "$cwd"