Fix package main and files

Author: moelders

package.json

@@ -2,7 +2,6 @@
   "name": "babel-plugin-inline-svg",
   "version": "1.1.0",
   "description": "Babel plugin to optimize and inline SVG",
-  "main": "index.js",
   "repository": {
     "url": "[email protected]:iest/babel-plugin-inline-svg.git",
     "type": "git"
@@ -15,10 +14,9 @@
     }
   ],
   "license": "MIT",
+  "main": "lib/index.js",
   "files": [
-    "index.js",
-    "babel-plugin-inline-svg.js",
-    "optimize.js"
+    "lib"
   ],
   "scripts": {
     "lint": "eslint . --ext .js --cache",