Create an html API document of the given PACKAGE.
The document will be named with [package-name].html
DIR-PATHNAME Is the output directory
:FEXCLUDE-CONST :FEXCLUDE-VAR :FEXCLUDE-CLASS :FEXCLUDE-COND :FEXCLUDE-FUNC :FEXCLUDE-MACRO keys may be
valorized with exclusion functions that take as parameter the symbol name.
For example an exclusion key will be somethink like (lambda (s) (string-equal "foo" (symbol-name s)))
that will exclude FOO symbol.
When one of these functions return true the API is not generated for the current symbol