Update plugin.py

Wikipedia added 'dir="ltr"' to the source of the article link, which means regex cannot find the text anymore and thus variable is empty.
AttackProtector: Fix test.
AttackProtector & LimnoriaChan & Sudo & SupyML: Fix tests to work with latest version of Limnoria.
Merge pull request #191 from XSlicer/patch-1

Wikipedia: Fixed plugin.py due to changed source