Release 4 (4.0.3)

Version 4 (release 4.0.3) is a significant rewrite of the package. It also introduces a number of new features.
See the documentation for details.
Here are a few highlight:

• Options introduced on the \usepackage command (compatV3, nocheck, headings, myheadings).
• No longer adjusts \headheight and \footskip, on the following pages.
• Eliminated global definitions.
• The page style fancydefault.
• The \headruleskip parameter.
• The \fancyheadinit, \fancyfootinit, and \fancyhfinit commands.
• The \fancycenter command.
• The \fancypagestyle command has an optional parameter.