Since these are just interpreted comments, there's 0 impact on actual code.
This removes all lines that match /* vim: set(.*)tw=80: */ with S&R -- there are
a few others scattered around which will be removed manually in a second part.
About time we stopped looking at Netscape 4.x entries in the registry ;)
Also, assume the application association API is present in Windows
and use that instead of reading from the registry directly.
