Create start-to-finish documentation for how to use EL
Some starting points from which to TL;DR:
https://www.mediawiki.org/wiki/Extension:EventLogging/Guide#Creating_a_schema https://www.mediawiki.org/wiki/Extension:EventLogging https://www.mediawiki.org/wiki/Extension:EventLogging/Programming https://www.mediawiki.org/wiki/EventLogging/OperationalSupport
see Dec 4, 2014 tasking mgt notes: http://etherpad.wikimedia.org/p/analytics-tasking