Binding events to methods

[Mattia Barbon]

  Hi,
I just checked in a change I planned to do since forever (and
that took 6 lines of code...) that allows binding an event to a
method instead to a subroutine/code reference.  As an example

  EVT_BUTTON( $self, $button, 'do_foo' );

will try to call do_foo as a method; it is more or less
equivalent to

  EVT_BUTTON( $self, $button, sub { $_[0]->do_foo( $_[1] ) } );

Regards,
Mattia