Add code to send error info from client to kadira server
Add stacktrace.js

To get a normalized stacktrace form all supported browsers
Send error trace (without events) for zone errors
Expose getBrowserInfo so it can be reused by all error types
Send data using jsonp instead of cors
Get zone events directly from zone.events
added zones as a dependency
removed removed unused routes specified code base
changed to send error immediately
only hijack if appId is available to the client
Merge branch 'mnmtanish-send-errors' into error-tracking