Bump mustache from 1.1.0 to 2.2.1

Bumps [mustache](https://github.com/janl/mustache.js) from 1.1.0 to 2.2.1.
- [Release notes](https://github.com/janl/mustache.js/releases)
- [Changelog](https://github.com/janl/mustache.js/blob/master/CHANGELOG.md)
- [Commits](janl/mustache.js@v1.1.0...v2.2.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -43,7 +43,7 @@
     "d3-format": "1.2.0",
     "d3-time-format": "2.1.0",
     "jquery": "2.1.4",
-    "mustache": "1.1.0",
+    "mustache": "2.2.1",
     "perfect-scrollbar": "https://github.com/CartoDB/perfect-scrollbar.git#master",
     "postcss": "5.0.19",
     "promise-polyfill": "^6.1.0",