Cleanup dependencies and bump min version to current LTS

Author: flovilmart

.babelrc

@@ -1,13 +1,12 @@
 {
     "plugins": [
-        "transform-flow-strip-types"
+        "transform-flow-strip-types",
+        "transform-object-rest-spread"
     ],
     "presets": [
-        "es2015",
-        "stage-3",
         ["env", {
             "targets": {
-                "node": "4.6"
+                "node": "6.11.4"
             }
         }]
     ]

.travis.yml

@@ -25,13 +25,13 @@ stage: test
 env:
   global:
   - COVERAGE_OPTION='./node_modules/.bin/nyc'
-  - NODE_VERSION=6.10 
+  - NODE_VERSION=6.11.4
   matrix:
   - MONGODB_VERSION=3.2.13
   - MONGODB_VERSION=3.4.4
   - PARSE_SERVER_TEST_DB=postgres
   - PARSE_SERVER_TEST_CACHE=redis
-  - NODE_VERSION=8.5
+  - NODE_VERSION=8.7
 before_install:
 - nvm install $NODE_VERSION
 - nvm use $NODE_VERSION
@@ -48,7 +48,7 @@ jobs:
   include:
     # release on github latest branch
     - stage: release
-      node_js: '4.6'
+      node_js: '6.11.4'
       env: 
       before_script: skip
       after_script: skip

package.json

@@ -48,12 +48,9 @@
     "babel-cli": "6.26.0",
     "babel-core": "6.26.0",
     "babel-eslint": "^8.0.0",
-    "babel-plugin-syntax-flow": "6.18.0",
     "babel-plugin-transform-flow-strip-types": "6.22.0",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-preset-env": "1.6.1",
-    "babel-preset-es2015": "6.24.1",
-    "babel-preset-stage-3": "6.24.1",
-    "babel-register": "6.26.0",
     "bcrypt-nodejs": "0.0.3",
     "cross-env": "5.1.0",
     "deep-diff": "0.3.8",
@@ -80,7 +77,7 @@
     "prepublish": "npm run build"
   },
   "engines": {
-    "node": ">=4.6"
+    "node": ">=6.11.4"
   },
   "bin": {
     "parse-server": "./bin/parse-server"