refactor(*): Upgrade build to use babel-cli

Author: jspizziri

.babelrc

@@ -1 +1 @@
-{ "presets": ["es2015"] }
+{ "presets": ["env"] }

.gitignore

@@ -1,2 +1,3 @@
+dist/
 nbproject/
 node_modules/

gulpfile.js

@@ -1,5 +1,5 @@
 // Import Connect
-import Connection from './lib/Connection';
+import Connection from './src/Connection';
 
 // Export Connection
 module.exports = Connection;

index.js

@@ -10,10 +10,16 @@
     "type": "git",
     "url": "https://github.com/jspizziri/sequelize-connect.git"
   },
+  "files": [
+    "dist"
+  ],
   "scripts": {
+    "prepublish": "npm run build",
     "version": "npm run changelog && git add CHANGELOG.md",
     "postversion": "git push && git push --tags",
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0",
+    "clean": "rm -rf ./dist",
+    "build": "npm run clean && babel src --out-dir dist/src --source-maps && babel index.js --out-dir dist --source-maps",
     "commit": "git-cz"
   },
   "keywords": [
@@ -32,22 +38,14 @@
   "peerDependencies": {
     "sequelize": ">=4.0"
   },
-  "devDependencies": {
-    "babel-core": "^6.9.0",
-    "babel-eslint": "^6.0.4",
-    "babel-preset-es2015": "^6.9.0",
-    "babelify": "^7.3.0",
-    "commitizen": "^2.8.1",
-    "cz-conventional-changelog": "^1.1.5",
-    "eslint": "^2.10.2",
-    "gulp": "^3.9.1",
-    "gulp-babel": "^6.1.2",
-    "gulp-clean": "^0.3.2",
-    "gulp-sourcemaps": "^1.6.0"
-  },
   "config": {
     "commitizen": {
       "path": "./node_modules/cz-conventional-changelog"
     }
+  },
+  "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-preset-env": "^1.7.0",
+    "cz-conventional-changelog": "^2.1.0"
   }
 }