Updated mediawiki/extensions
Project: mediawiki/extensions/CentralNotice  a3455237f25a4c7fffde70fae85850f37cde884b

Use BannerChoiceDataProvider in allocation display

Move allocation algorithm from BannerChooser into
BannerAllocationCalculator. Calculates both and
hides new allocation with css.  TODO: toggle visibility
with checkbox.

Change-Id: Ida4e62ea0ad2434246a923fbcc879b4b50e95489