Support react 16 (#57)

* updated to react 16

Signed-off-by: Stephane Jolicoeur <sjolicoeur@pivotal.io>

* update to upgrade to react 16.0.0

Signed-off-by: Reid Mitchell <rmitchell@pivotal.io>

* Added  back in the deps on older version of react to not make it a breaking change

Signed-off-by: Reid Mitchell <rmitchell@pivotal.io>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-tether",
-  "version": "0.5.7",
+  "version": "0.6.0",
   "description": "Drop content anywhere on the page.",
   "main": "lib/react-tether.js",
   "scripts": {
@@ -34,8 +34,8 @@
     "tether": "^1.3.7"
   },
   "peerDependencies": {
-    "react": "^0.14.0 || ^15.0.0",
-    "react-dom": "^0.14.0 || ^15.0.0"
+    "react": "^0.14.0 || ^15.0.0 || ^16.0.0",
+    "react-dom": "^0.14.0 || ^15.0.0 || ^16.0.0"
   },
   "devDependencies": {
     "babel-cli": "^6.16.0",
@@ -52,8 +52,8 @@
     "node-libs-browser": "^1.0.0",
     "node-sass": "^3.2.0",
     "postcss-loader": "^0.13.0",
-    "react": "15.3.2",
-    "react-dom": "15.3.2",
+    "react": "^16.0.0",
+    "react-dom": "^16.0.0",
     "react-motion": "^0.4.2",
     "react-motion-ui-pack": "^0.6.0",
     "sass-loader": "^4.0.2",