.gitreview for labs branch

Change-Id: I457d891ee2657fe19b5bacf4d1af231ba4c4b175
basic layout for labs

Change-Id: I7c96617b9adb8adbde71c7c7a85089a63ac35fe5
labs: update set of jobs

And use a template

Change-Id: I9d3e72f3445a5f0e67529689e9c42f30902afb2b
labs: allow 'recheck' comments

Change-Id: I94a776d9fab83bbdc08714d05ead1d222850ef21
Test mediawiki/core in extensions

Change-Id: Ic9ed4a764dfcdc03c1225e86d0ad43b488f68fa2
Bring in integration-mediawiki for extensions

Change-Id: I8d3735cfa20147cf2b73bc9d81bfd6dafc9bfdb1
Add in MediaWiki integration jobs

One with just the extension, another with all of them.

Change-Id: Ia488f9d691021370973b67883403a15c416b51b7
Trigger integration-many-mw-exts for mw/core

Change-Id: I73db92dbe101102fa7ec481558af5c50cdd69ac2