feat(collections): Add suport for collections

Author: posva

.babelrc

@@ -0,0 +1,16 @@
+{
+  "presets": [
+    ["env", {
+      "targets": {
+        "browsers": [
+        "last 2 Chrome versions",
+        ]
+      }
+    }]
+  ],
+  "env": {
+    "test": {
+      "plugins": [ "istanbul" ]
+    }
+  }
+}

.gitignore

@@ -1,3 +1,4 @@
 .DS_Store
 node_modules
 coverage
+.nyc_output