chore: update dependencies

.gitignore

@@ -1,4 +1,3 @@
 node_modules/
 coverage/
 npm-debug.log
-yarn.lock

.travis.yml

@@ -1,8 +1,6 @@
 language: node_js
 node_js:
-  - '4.0'
-before_install:
-  - npm install -g babel-cli
+  - '6.0'
 script:
   - npm run lint
   - npm run build

package.json

@@ -31,27 +31,28 @@
   },
   "homepage": "https://github.com/troch/route-node",
   "devDependencies": {
-    "babel-core": "~6.9.1",
-    "babel-eslint": "~6.0.4",
+    "babel-cli": "~6.24.1",
+    "babel-core": "~6.24.1",
+    "babel-eslint": "~7.2.3",
     "babel-plugin-add-module-exports": "~0.2.1",
-    "babel-plugin-transform-class-properties": "~6.9.1",
-    "babel-plugin-transform-export-extensions": "~6.8.0",
-    "babel-plugin-transform-object-rest-spread": "~6.8.0",
-    "babel-preset-es2015": "~6.9.0",
-    "babel-preset-es2015-rollup": "~1.2.0",
-    "conventional-changelog": "~1.1.0",
-    "coveralls": "~2.11.12",
-    "eslint": "~3.2.2",
+    "babel-plugin-transform-class-properties": "~6.24.1",
+    "babel-plugin-transform-export-extensions": "~6.22.0",
+    "babel-plugin-transform-object-rest-spread": "~6.23.0",
+    "babel-preset-es2015": "~6.24.1",
+    "babel-preset-es2015-rollup": "~3.0.0",
+    "conventional-changelog": "~1.1.3",
+    "coveralls": "~2.13.1",
+    "eslint": "~3.19.0",
     "isparta": "~4.0.0",
-    "lodash.omit": "~4.4.1",
+    "lodash.omit": "~4.5.0",
     "mkdirp": "~0.5.1",
-    "mocha": "~3.0.2",
-    "rimraf": "~2.5.4",
-    "rollup": "~0.34.7",
-    "rollup-plugin-babel": "~2.6.1",
-    "rollup-plugin-node-resolve": "~2.0.0",
-    "should": "~10.0.0",
-    "yargs": "~4.8.1"
+    "mocha": "~3.4.1",
+    "rimraf": "~2.6.1",
+    "rollup": "~0.41.6",
+    "rollup-plugin-babel": "~2.7.1",
+    "rollup-plugin-node-resolve": "~3.0.0",
+    "should": "~11.2.1",
+    "yargs": "~8.0.1"
   },
   "dependencies": {
     "path-parser": "2.0.2",