tarteaucitron.js : The european cookie law regulates the management of cookies and you should ask your visitors their consent before exposing them to third party service...
Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
jsmad : Javascript MPEG-1 Audio Layer III (mp3) and ID3v2 decoder
Firebug Lite : A JavaScript file you can insert into your pages to simulate the Firebug console in browsers that are not named Firefox.
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.