Duplicate new table from core, patch 349457
Duplicate new table from core, patch 349457

With 349457, anytime a revision is created, a corresponding record
is created in the new ip_changes table. This may cause tests to fail
if they don't drop the ip_changes table between individual tests.

https://gerrit.wikimedia.org/r/#/c/349457/

Change-Id: I48f0b64f19f9582b40540fa1b42a39d281979625

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo