Rename the Doxygen page source directory from ManPages/ to DoxygenPages/ to prevent user confusion with the actual *nix Man tool.

Spell check code and manual pages. Remove custom Doxygen CSS stylesheet, as the new 1.7 Doxygen's default stylesheet is much better.

Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style.