Log Message:
Update to 1.8:
		+ fixed the copy link location code.
		+ updated Polish translation.
		+ now SPACE and BACKSPACE work like PAGEUP and PAGEDOWN
		in the HTML display window.
		+ added (X)Emacs indertation meta-comments to the source
		files.
		+ fixed Win32 MB2WC() bug.
		+ re-wrote the HHC/HHK parsing code from scratch.
		+ added pretty book icons to the Win32 content tree too.