Add in escaping of quotes for relative paths (#145)

* Add in escaping of quotes for relative paths

* Add double quote escaping

* Fix lint errors

* Always escape relative paths

src/website/theme-base/helpers/relative.js

@@ -2,5 +2,10 @@ const path = require('path')
 
 module.exports = (target, options) => {
   const albumPath = options.data.root.album.path
-  return path.relative(path.dirname(albumPath), target)
+  var relative = path.relative(path.dirname(albumPath), target)
+
+  // Escape single/double quotes
+  var escaped = relative.replace(/'/g, '%27')
+  escaped = escaped.replace(/"/g, '%22')
+  return escaped
 }