Allow method-calls on objects.

[skx]

I suspect I went down the wrong-path when I started adding the abliity to run things like this:

 puts( strings.toupper( "steve" ) );

The idea of a standard-library is appealing, but really when we want to turn a string into a modified version we should probably allow that to happen via the object itself. So I'd prefer users to write:

  puts( "steve".toupper() );

Of course not everything is an object, but a similar approach could be applied to at least:

• arrays
• hashes
• strings

Integers/Floats/Booleans will probably be left alone, and we'd keep the "standard library" for files/etc.

This will be a reasonably large change:

• Allow parsing method-calls via a "."
  • e.g. "foo.bar()" is a method call to function "bar" with implicit arg "foo".
• Remove much of the standard library.
  • e.g. strings.toupper, strings.tolower(), etc.

Fun times :)