Start tracking events and timings in Google Analytics

Add a simple library for tracking events and the time between
certain events. Use the Logging class to shunt certain simplified
events to GA whenever they are logged.

[#43522221]
Add sanity-check on timings, as suggested by Google documentation

[#43522221]
Log going to journal post from feedback link

[#55993772]
Add journal navigation to Google Analytics events

[#43522221]