Fix material buttons

Merged username-removed-124398 requested to merge NicoAlt/repomaker:fix-mdl-button into master

In 7aba3abcb3e55c6f163867a5a50325b254900201 I accidentially broke material buttons to have a button with blue background in the logout view.

Apologies, this fixes it.

Before

Screen_Shot_2017-06-23_at_16.11.43

Screen_Shot_2017-06-23_at_16.11.37

Now

Screen_Shot_2017-06-23_at_16.11.26

Screen_Shot_2017-06-23_at_16.11.23