Remove jQuery reliance in the analytics script

This allows mobile to track:
* Outgoing Links
* File Downloads
* Social sharing (may not be relevant, as this region isn't always available)
* WDN Tools usage (again, may not be relevant)

I also removed the variables related to tracking desktop/mobile, as they should no longer be necessary (with the exception of the mobile tracking account).

## Known Issue
The WDN Tools tracks an ```onclick``` event twice. I have no idea why.