chore: update dependencies

Fix eslint to ~2.2.0 to ensure it does not cause errors. See
babel/babel-eslint#267 for more

package.json

@@ -53,27 +53,27 @@
     }
   },
   "dependencies": {
-    "babel-runtime": "^6.5.0",
+    "babel-runtime": "^6.6.1",
     "fs-promise": "^0.5.0",
     "ini": "^1.3.4"
   },
   "devDependencies": {
-    "babel-cli": "^6.5.1",
-    "babel-core": "^6.5.2",
+    "babel-cli": "^6.6.5",
+    "babel-core": "^6.7.4",
     "babel-eslint": "^5.0.0",
-    "babel-plugin-transform-runtime": "^6.5.2",
-    "babel-preset-es2015": "^6.5.0",
+    "babel-plugin-transform-runtime": "^6.6.0",
+    "babel-preset-es2015": "^6.6.0",
     "babel-preset-stage-2": "^6.5.0",
-    "babel-register": "^6.5.2",
+    "babel-register": "^6.7.2",
     "chai": "^3.5.0",
     "chai-spies": "^0.7.1",
-    "eslint": "^2.1.0",
-    "eslint-config-strict": "^8.1.1",
+    "eslint": "~2.2.0",
+    "eslint-config-strict": "^8.5.0",
     "eslint-plugin-filenames": "^0.2.0",
     "ghooks": "^1.0.3",
     "mocha": "^2.4.5",
     "semantic-release": "^4.3.5",
     "travis-after-all": "^1.4.4",
-    "validate-commit-msg": "^2.0.0"
+    "validate-commit-msg": "^2.4.1"
   }
 }