Bump dependencies

package.json

@@ -24,7 +24,7 @@
         }
     ],
     "dependencies": {
-        "ajv": "6.6.1",
+        "ajv": "6.6.2",
         "basic-auth": "2.0.1",
         "bcryptjs": "2.4.3",
         "body-parser": "1.18.3",
@@ -33,7 +33,7 @@
         "cookie": "0.3.1",
         "cookie-parser": "1.4.3",
         "cors": "2.8.5",
-        "cron": "1.5.1",
+        "cron": "1.6.0",
         "denque": "1.4.0",
         "express": "4.16.4",
         "express-session": "1.15.6",
@@ -41,9 +41,9 @@
         "fs.notify": "0.0.4",
         "hash-sum": "1.0.2",
         "https-proxy-agent": "2.2.1",
-        "i18next": "12.1.0",
+        "i18next": "13.1.0",
         "is-utf8": "0.2.1",
-        "js-yaml": "3.12.0",
+        "js-yaml": "3.12.1",
         "json-stringify-safe": "5.0.1",
         "jsonata": "1.6.3",
         "media-typer": "1.0.1",
@@ -77,7 +77,7 @@
         "bcrypt": "~2.0.0"
     },
     "devDependencies": {
-        "chromedriver": "2.43.1",
+        "chromedriver": "2.45.0",
         "grunt": "~1.0.3",
         "grunt-chmod": "~1.1.1",
         "grunt-cli": "~1.3.2",