feat(travis): add auto deploy from Travis CI

.travis.yml

@@ -1,3 +1,19 @@
 sudo: false
 language: node_js
-node_js: "stable"
+node_js: stable
+env:
+  global:
+    - GH_USER_EMAIL="[email protected]"
+    - GH_USER_NAME="azu"
+after_success:
+  - |
+
+        $(npm bin)/set-up-ssh --key "$encrypted_cee6f610cc35_key" \
+                             --iv "$encrypted_cee6f610cc35_iv" \
+                             --path-encrypted-key ".travis/github_deploy_key.enc"
+
+        $(npm bin)/update-branch --commands "npm run build:website"
+                                 --commit-message "Update website [skip ci]"
+                                 --directory "website/public"
+                                 --distribution-branch "gh-pages"
+                                 --source-branch "master"

package.json

@@ -24,7 +24,8 @@
     "test": "mocha test/ website/test/",
     "build": "NODE_ENV=production babel src --out-dir lib --source-maps",
     "watch": "babel src --out-dir lib --watch --source-maps",
-    "prepublish": "npm run --if-present build"
+    "prepublish": "npm run --if-present build",
+    "build:website": "(cd website && npm i && npm run build"
   },
   "keywords": [
     "morpheme",