Easy Namespacing
================
This version doesn't require JavaScript 1.8

Examples:

`"foo.bar.baz".namespace()` makes `foo.bar.baz`

`"foo::bar::baz".namespace("::")` makes `foo.bar.baz`

`namespace.call(obj, ns[, separator])` extends `ns` (split by separator or ".") onto `obj`

function namespace(fullNS, separator) {
  var parent = this;
  fullNS.split(separator || '.').forEach(function(ns) {
    parent = parent[ns] = parent[ns] || {}
  });
}
 
String.prototype.namespace = function(separator, thisp) {
  namespace.call((thisp||window), this, separator);
};