6.0.0

I'm extremely stupid and didn't commit as I go. To anyone reading this
I'm extremely sorry. A lot of these changes are very broad and I plan on
releasing Babel 6.0.0 today live on stage at Ember Camp London so I'm
afraid I couldn't wait. If you're ever in London I'll buy you a beer
(or assorted beverage!) to make up for it, also I'll kiss your feet and
give you a back massage, maybe.

packages/babel-generator/src/node/whitespace.js

@@ -163,7 +163,8 @@ exports.nodes = {
  * Test if Property or SpreadProperty needs whitespace.
  */
 
-exports.nodes.Property =
+exports.nodes.ObjectProperty =
+exports.nodes.ObjectMethod =
 exports.nodes.SpreadProperty = function (node, parent) {
   if (parent.properties[0] === node) {
     return {