added prepublish instruction with babel and build tasks; changed main file to transpiled one

Author: Antonio Tenorio Fornés

package.json

@@ -2,7 +2,7 @@
   "name": "ipfs-api",
   "version": "16.0.0",
   "description": "A client library for the IPFS HTTP API. Follows interface-ipfs-core spec",
-  "main": "src/index.js",
+  "main": "lib/index.js",
   "browser": {
     "glob": false,
     "fs": false,
@@ -14,6 +14,7 @@
     "test:node": "aegir test -t node ",
     "test:browser": "aegir test -t browser",
     "lint": "aegir lint",
+    "prepare": "babel src -d lib; aegir build",
     "build": "aegir build",
     "release": "aegir release ",
     "release-minor": "aegir release --type minor ",
@@ -61,6 +62,8 @@
   },
   "devDependencies": {
     "aegir": "^12.1.3",
+    "babel-cli": "^6.26.0",
+    "babel-preset-env": "^1.6.1",
     "chai": "^4.1.2",
     "dirty-chai": "^2.0.1",
     "eslint-plugin-react": "^7.4.0",