Log Message:
Update to 10.5.0

Changelog:
10.4.7
     Eliminate unused JSON error message.

     Elminated usage of $0 in replace on lists (no regular expressions). The count
     of replacements now is contained in the new $count system var, not $0. The usage
     of $0 - $15 now is strictly for regular expressions. This also speeds up \ 
replace.

     read-expr now uses $count instead of $0 for the number of characters processed.

     Eliminated undocumented usage of $0 for found elements in find-all on lists.
     Only $it is used. $0 only on find-all on strings with regular expressions.
     The system variable $count is updated for all forms of find-all, ref-all and
     set-ref-all.

     Link feature now built in with comandline flag -x for all OS flavors:
        newlisp -x <source-file> <executable-file>
     The file util/link.lsp is not required anymore but has been included and
     adapted to changes for the -x linkage. The file illustrates the internals
     of the linkage process when using the -x option.

     An additional true flag in the real-path function allows finding the executable
     path of executables - similar to the "which" utility on UNIX. \ 
This is a by-
     product of fixing the link.lsp feature for UNIX. The additional flag works
     on all platforms. 'real-path' on Windows and BSD now also veryfies that path
     and file are valid, as it already did on non-BSD Unix (OSX, Linux).

     Enforce MAX_SYMBOL for tags in xml-parse and symbol creation using sym.

     Security fixes for strncpy and strncat.

     Windows CGI server mode was broken in development version 10.4.6 (isDir()).

     Preparation for 64-bit Windows (in early summer).

10.4.8
    Cleanup of the factor function.

    Like date-parse, date-value will produce negative values for dates before \ 
1970-1-1
    til 1901-12-14.

    The function 'flat' now can take an optioal depth parameter to limit flattening
    a list up to certain level: (flat <list> [<level>])

        (flat '(1 2 (3 4 (5 6)) (7 8 (9 10)))  ) => (1 2 3 4 5 6 7 8 9 10)
        (flat '(1 2 (3 4 (5 6)) (7 8 (9 10))) 1) => (1 2 3 4 (5 6) 7 8 (9 10))
        (flat '(1 2 (3 4 (5 6)) (7 8 (9 10))) 2) => (1 2 3 4 5 6 7 8 9 10)

    A fix for 'extend' when passing wrong type to unitialized symbol.

    A fix in the parser to accept -.9 as -0.9 or +.9 as +0.9

    =, +, -, *, /, %, ++, --, >, <, <=, >=, !=  operators and the \ 
functions 'abs',
    'even?', 'odd?', 'length', 'number?' and 'zero?' are all working on big-integers
    of unlimited size. 'float' and 'int' convert bigints into double floats and
    64-bit integers and the function 'bigint' converts integers and floats to big
    integers. See the section "Big integer, unlimited precision \ 
arithmetik" in
    chapter 8. of the Users Manual for more information.

    Extended commandline buffer to 1024 bytes.

    The "debug" option in: (get-url "http://newlisp.org" \ 
"header debug") will now also
    output the status header line of the server response in the console.

10.5.0 Stable Release May 21st, 2013
    Further speed improvements on big integer multiplication and division/modulus.

    Check for division by zero in big integer division/modulus.

    Memory fix for ++, -- on big integers.

    The OSX Intel version is now 64-bit by default.