Updated mediawiki/extensions
Project: mediawiki/extensions/SecurePoll  7adb7ce8d5bc1752dd35be192e9e4904dcfcf0ed

Remove usage of spinner.gif

Use .mw-small-spinner class instead, which isn't exactly a recommended
interface, but it's not deprecated either and it's easy to replace
here.

Bug: 70615
Change-Id: I753ec1f1e5464a751c7c20481ae49a07cba1d7c4