Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  2a6680bbb1e9065bce0ca0c707c31eb2f12d0327

Tweaks to login and sign up form in alpha

* Make corners rounded for inputs
* Center links underneath form
* Hide specific content to focus on primary purpose of form

See also:  I175e9f515d962f9078845f25f9b96079819444c6

Change-Id: I16ac04f467d4f16977546ec276f89b1ac871114e