Added: Possibility to choose font file in the options dialog.
Also changed the browse tooltip for the other languages. It still requires the attention of translators though.

The two strings load_game_window.caption and save_game_window.caption has a new optional input in the form of what the extension is. It is not required though.

Don't require debug mode to be able to dump strings and gamelog.

git-svn-id: http://corsix-th.googlecode.com/svn/trunk@1992 c39591fa-788f-11de-a72b-d90af8dea425