feat: add option to refresh once during navigation (possible fix for #320)

chore: add es build

chore: global window detection

chore: small refactor improvements

scripts/build.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -e
+
+# Cleanup
+rm -rf lib es
+
+echo 'Compile JS...'
+rollup -c scripts/rollup.config.js
+echo 'Done.'
+echo ''
+
+echo 'Build ES modules...'
+NODE_ENV=es babel src --out-dir es --ignore 'src/browser.js'
+echo 'Done.'
+echo ''
+
+echo 'Done building assets.'