Refs #6795, add --iis-map-field option to allow users of log importer script to parse log files created using the IIS Advanced Logging module. Includes tests for such a case (including python unit test + PHP System test).

Fix regression in MultiSites w/ regard to master, make sure orders_evolution and ecommerce_revenue_evolution are not present if ecommerce is not enabled for the site.

Fix API.getProcessedReport output for site search reports (do not display certain processed metrics in reports).

Do not display avg_order_revenue in processed reports for Goals.get w/ idGoal set to ecommerce goal.

a visitor now has a browser, browser name and browser version attribute, so it's clear what it's containing.

Fixing more tests and moving API.get metadata away from top for API.getReportMetadata list so MultiSites reports are first displayed.

Handle evolution metrics & goal metrics in Inconsistencies::getPercentMetrics, use correct time formatting in two other places, and fix ImportLogsTest.