TravisCI: Enable automatic deployment to GitHub Pages

.travis.yml

@@ -1,3 +1,6 @@
 language: node_js
 
 sudo: false
+
+after_success:
+  - if [[ "$TRAVIS_BRANCH" == "master" ]]; then bash .travis/deploy.sh; fi

.travis/deploy.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+eval "$(ssh-agent -s)"
+
+openssl aes-256-cbc -K $encrypted_f72e501d769d_key -iv $encrypted_f72e501d769d_iv -in .travis/deploy_key.pem.enc -out .travis/deploy_key.pem -d
+chmod 600 .travis/deploy_key.pem
+ssh-add .travis/deploy_key.pem
+
+mkdir gh-pages
+cd gh-pages
+cp -R ../examples ../src .
+
+git init
+git config user.name "Travis"
+git config user.email "[email protected]"
+git add .
+git commit -m "Deploy to GitHub Pages"
+git push --force --quiet [email protected]:Turbo87/leaflet-sidebar.git master:gh-pages > /dev/null 2>&1