Toggling acts globally, but `:match` is local to windows

[blueyed]

:DisableWhitespace leaves the matches in other windows around, from :echo getmatches():

{'group': 'ExtraWhitespace', 'pattern': '\s\+$', 'priority': 10, 'id': 1}

TEST CASE:

1. vim -c 'EnableWhitespace' -c 'norm ifoo ' -c 'new' -c 'DisableWhitespace'

After this, the trailing space in the first window is still highlighted.

This is related to issue #3 (local settings per buffer/window).

[ntpeters]

Confirming fixed by #24. Closing this issue.