function isNonPositiveInteger( value ) {
	return ( isPrimitive( value ) || isObject( value ) );
}
Tests if a value is a nonpositive integer.

@param {*} value - value to test
@returns {boolean} boolean indicating whether value is a nonpositive integer

@example
var bool = isNonPositiveInteger( -5.0 );
// returns true

@example
var bool = isNonPositiveInteger( new Number( -5.0 ) );
// returns true

@example
var bool = isNonPositiveInteger( 5.0 );
// returns false

@example
var bool = isNonPositiveInteger( -3.14 );
// returns false

@example
var bool = isNonPositiveInteger( null );
// returns false