Update package.json

Author: Cheton Wu (RD-TW)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gcode-parser",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "A G-code parser for Node.js",
   "author": "Cheton Wu <[email protected]>",
   "homepage": "https://github.com/cheton/gcode-parser",
@@ -27,11 +27,9 @@
     "lodash": "^3.10.1"
   },
   "devDependencies": {
-    "babel": "^6.1.18",
-    "babel-core": "^6.2.1",
+    "babel-core": "^6.3.15",
     "babel-preset-es2015": "^6.1.18",
     "babel-preset-stage-0": "^6.1.18",
-    "babel-runtime": "^6.2.0",
     "chai": "^3.4.1",
     "coveralls": "^2.11.4",
     "gulp": "^3.9.0",