Merge branch 't/utf8'

Merge branch 't/utf8'

Was cooking since 2013-03-10.

	a946af string.c: Fix typo in documentation of skip_cells().
	251394 Switch to HTF-8 for web pages.
	09c6bc gui: Try to link against libncursesw.
	36f38a UTF-8 support for para_gui.
	a99804 mp3_afh: Switch to UTF-8 encoding.
	f78b53 gui: Don't compute string length unnecessarily.
	6224f7 Get rid of unused HAVE_NCURSES define.
	6cd788 Fix --with-curses configure option.