StdChat to close all windows on exit

git-svn-id: http://svn.miranda-ng.org/main/trunk@7750 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
forgotten to revert IRC-style symbols

git-svn-id: http://svn.miranda-ng.org/main/trunk@7751 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
langpacks/polish: update

git-svn-id: http://svn.miranda-ng.org/main/trunk@7752 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c