updated deps; migrate to babel 6; eslint fixes;

.babelrc

@@ -0,0 +1,14 @@
+{
+  "presets": [
+    "react",
+    "es2015",
+    "stage-1"
+  ],
+  "env": {
+    "test": {
+      "plugins": [
+        "istanbul"
+      ]
+    }
+  }
+}

.eslintrc

@@ -65,7 +65,6 @@
     "no-else-return": 1,
     "no-empty": 2,
     "no-empty-character-class": 2,
-    "no-empty-label": 2,
     "no-eq-null": 0,
     "no-eval": 2,
     "no-ex-assign": 2,
@@ -161,6 +160,7 @@
     "handle-callback-err": 0,
     "indent": [2, 2],
     "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
+    "keyword-spacing": 2,
     "max-depth": [0, 4],
     "max-len": [0, 80, 4],
     "max-nested-callbacks": [0, 2],
@@ -177,13 +177,11 @@
     "semi": 2,
     "semi-spacing": [2, {"before": false, "after": true}],
     "sort-vars": 0,
-    "space-after-keywords": [2, "always"],
     "space-before-blocks": [0, "always"],
     "space-before-function-paren": [0, "always"],
     "space-in-brackets": [0, "never"],
     "space-in-parens": [0, "never"],
     "space-infix-ops": 2,
-    "space-return-throw-case": 2,
     "space-unary-ops": [2, { "words": true, "nonwords": false }],
     "spaced-line-comment": [0, "always"],
     "strict": 2,
@@ -207,6 +205,6 @@
     "react/prop-types": 1,
     "react/react-in-jsx-scope": 2,
     "react/self-closing-comp": 1,
-    "react/wrap-multilines": 2
+    "react/jsx-wrap-multilines": 2
   }
 }