significantly improved the way we test isX functions. That and:

added:
  Hash.js
  Hash/inspect.js
  Number/clone.js
  Object/each.js
  Object/hasOnlyOwnProperties.js
  Object/hasProperties.js
  Object/inspectProperties.js
  Object/isEmpty.js
  Object/isObject.js
  Object/isPlainObject.js
  Object/isPrototype.js
  Object/isWindow.js
  STDLIB/ownPropertiesListedFirst.js

improved:
 Function/bind.js
 Function/clone.js
 Function/inspect.js
 Object/clone.js
 Object/extend.js
 Object/extendOwnProperties.js
 Object/inspect.js
 Object/isArguments.js
 Object/isDate.js
 Object/isFunction.js
 Object/isHash.js
 Object/isNull.js
 Object/isUndefined.js
 Object/type.js
 inspect.js
added a default rake task that runs rspec