Polish langpack: initial update

git-svn-id: http://svn.miranda-ng.org/main/trunk@5355 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
we remove events only when shutdown is irreversible 

git-svn-id: http://svn.miranda-ng.org/main/trunk@5356 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Polish langpack: CORE update

git-svn-id: http://svn.miranda-ng.org/main/trunk@5357 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c