smaller fixes

.travis.yml

@@ -7,4 +7,4 @@ before_script:
   - npm install -g web-ext
 script:
   - jshint js/
-  - web-ext lint --warnings-as-errors --ignore-files "libs/*" "**/*.sh"
+  - web-ext lint --warnings-as-errors --ignore-files "libs/*" "docs/" "**/*.sh"

js/popup.js

@@ -150,7 +150,7 @@ document.addEventListener('DOMContentLoaded', function() {
       handleTrackingCode: function() {
         var piwikURL = encodeURI(popup.el.piwikURL.value);
         if (!piwikURL.endsWith("/")) {
-          piwikURL += "/"
+          piwikURL += "/";
         }
         var siteID = parseInt(popup.el.siteID.value, 10);
         if (!siteID || !piwikURL) {

package.json

@@ -10,7 +10,7 @@
   "devDependencies": {},
   "scripts": {
     "copy": "bash copy.sh",
-    "build": "web-ext build --ignore-files '**/*.sh'"
+    "build": "web-ext build --ignore-files '**/*.sh' 'docs/'"
   },
   "repository": {
     "type": "git",