Add error reporting.
Updated error tracking.
Merge pull request #572 from optimizely/krush/lead-error-tracking

More error reporting for /free-trial
Add more tracking.
More changes.
Prevent auto focus on touch devices.
Handle json.parse error gracefully.
Merge pull request #574 from optimizely/krush/free-trial-error-reporting

Enhancements to SEO form
pull newest changes