track.js

http://trackjs.com/

{Track:js} provides a complete snapshot of the application, browser, operating system, and javascript libraries that were present to the error.

{Track:js} captures your console messages in a rolling appender and includes them in the Telemetry Timeline when an error occurs. Print-line debugging in the browser. 

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Track Errors, Fix Bugs, Delight Customers.

Error timeline

Replay what happened in the network, the console, and what the user was doing right up to the error.

Ping google regarding your sitemap change

Ping this url to notify google about your sitemap change.

www.google.com/webmasters/tools/ping?sitemap=http://www.example.com/sitemap.gz

Css loader

http://projects.lukehaas.me/css-loaders/

Check this link for single element css loader

App.js

http://code.kik.com/app/2/index.html

App.js - Mobile webapps made easy. App.js is a lightweight JavaScript UI library for creating mobile webapps that behave like native apps, sacrificing neither performance nor polish.

Numeral.js

http://numeraljs.com/

Numeral.js - A javascript library for formatting and manipulating numbers.