Git commits in Moodle 3.1.12 by Andrew Nicols

commit 9a15bdc97f0804c3ae7354ff10b902dde8ffa03d
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Tue, 01 May 2018 09:30:46 +0800
Tag:    v3.1.12

MDL-62280 xhprof: Support tideways_xhprof


commit 2032491730bf2dd73f73229dc7940236875e48f8
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Wed, 28 Mar 2018 09:05:23 +0800
Tag:    v3.1.12

MDL-61770 iplookup: Check types rather than values