Update build and test scripts

Author: cheton

.babelrc

@@ -1,3 +1,10 @@
 {
-    "presets": ["es2015", "stage-0"]
+    "presets": ["es2015", "stage-0"],
+    "env": {
+        "test": {
+            "plugins": [
+                "istanbul"
+            ]
+        }
+    }
 }

.eslintrc

@@ -0,0 +1,8 @@
+{
+  "extends": "trendmicro",
+  "parser": "babel-eslint",
+  "env": {
+    "browser": true,
+    "node": true
+  }
+}

.gitignore

@@ -1,3 +1,4 @@
 node_modules
+/.nyc_output
 /lib
 /coverage

.travis.yml

@@ -6,4 +6,3 @@ node_js:
   - '4'
 after_success:
   - npm run coveralls
-  - npm run coverage-clean

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gcode-toolpath",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "description": "G-code Toolpath Generator",
   "author": "Cheton Wu <cheton@gmail.com>",
   "homepage": "https://github.com/cncjs/gcode-toolpath",
@@ -17,27 +17,43 @@
     "gcode"
   ],
   "scripts": {
-    "prepublish": "npm run build && npm test",
-    "build": "gulp",
-    "test": "gulp test",
-    "coverage": "istanbul cover node_modules/mocha/bin/_mocha -- --require babel-core/register -R spec",
-    "coverage-clean": "rm -rf ./coverage",
+    "prepublish": "npm run eslint && npm run build && npm test",
+    "eslint": "eslint src",
+    "build": "babel --out-dir ./lib ./src",
+    "test": "cross-env NODE_ENV=test nyc mocha",
     "coveralls": "cat ./coverage/lcov.info | ./node_modules/.bin/coveralls"
   },
   "main": "lib/index.js",
   "dependencies": {
-    "gcode-interpreter": "^1.2.0"
+    "gcode-interpreter": "^1.3.0"
   },
   "devDependencies": {
-    "babel-core": "^6.26.0",
+    "babel-cli": "^6.26.0",
+    "babel-eslint": "^8.0.1",
+    "babel-plugin-istanbul": "^4.1.5",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-stage-0": "^6.24.1",
-    "chai": "^3.5.0",
-    "coveralls": "^2.13.2",
-    "gulp": "^3.9.1",
-    "gulp-babel": "^7.0.0",
-    "gulp-istanbul": "^1.1.2",
-    "gulp-mocha": "^4.3.1",
-    "mocha": "^3.5.3"
+    "babel-register": "^6.26.0",
+    "chai": "^4.1.2",
+    "coveralls": "^3.0.0",
+    "cross-env": "^5.0.5",
+    "eslint": "^4.7.2",
+    "eslint-config-trendmicro": "^1.0.0",
+    "eslint-plugin-import": "^2.7.0",
+    "eslint-plugin-jsx-a11y": "^5.1.1",
+    "eslint-plugin-react": "^7.4.0",
+    "mocha": "^3.5.3",
+    "nyc": "^11.2.1"
+  },
+  "nyc": {
+    "require": [
+      "babel-register"
+    ],
+    "reporter": [
+      "lcov",
+      "text"
+    ],
+    "sourceMap": false,
+    "instrument": false
   }
 }