Bumped dependencies

no issue

package.json

@@ -37,7 +37,7 @@
     "analytics-node": "2.4.1",
     "archiver": "1.3.0",
     "bcryptjs": "2.4.3",
-    "bluebird": "3.5.2",
+    "bluebird": "3.5.3",
     "body-parser": "1.18.3",
     "bookshelf": "0.13.3",
     "bookshelf-relations": "0.2.1",
@@ -49,7 +49,7 @@
     "connect-slashes": "1.3.1",
     "cookie": "0.3.1",
     "cookie-session": "1.3.2",
-    "cors": "2.8.4",
+    "cors": "2.8.5",
     "csv-parser": "1.12.1",
     "downsize": "0.0.8",
     "express": "4.16.4",
@@ -69,9 +69,9 @@
     "image-size": "0.6.3",
     "intl": "1.2.5",
     "intl-messageformat": "1.3.0",
-    "js-yaml": "3.12.0",
+    "js-yaml": "3.12.1",
     "jsonpath": "1.0.0",
-    "jsonwebtoken": "8.3.0",
+    "jsonwebtoken": "8.4.0",
     "keypair": "1.0.1",
     "knex": "0.14.6",
     "knex-migrator": "3.2.4",
@@ -81,8 +81,8 @@
     "markdown-it-lazy-headers": "0.1.3",
     "markdown-it-mark": "2.0.0",
     "mobiledoc-dom-renderer": "0.6.5",
-    "moment": "2.22.2",
-    "moment-timezone": "0.5.21",
+    "moment": "2.23.0",
+    "moment-timezone": "0.5.23",
     "multer": "1.4.1",
     "mysql": "2.16.0",
     "nconf": "0.10.0",
@@ -96,7 +96,7 @@
     "passport-oauth2-client-password": "0.1.2",
     "path-match": "1.2.4",
     "rss": "1.2.2",
-    "sanitize-html": "1.19.1",
+    "sanitize-html": "1.20.0",
     "semver": "5.6.0",
     "simple-dom": "0.3.2",
     "simple-html-tokenizer": "0.5.7",
@@ -107,15 +107,15 @@
     "xml": "1.0.1"
   },
   "optionalDependencies": {
-    "sharp": "0.21.0",
-    "sqlite3": "4.0.3"
+    "sharp": "0.21.3",
+    "sqlite3": "4.0.6"
   },
   "devDependencies": {
     "eslint": "4.19.1",
     "eslint-plugin-ghost": "0.0.27",
     "grunt": "1.0.3",
     "grunt-bg-shell": "2.3.3",
-    "grunt-cli": "1.3.1",
+    "grunt-cli": "1.3.2",
     "grunt-contrib-clean": "1.1.0",
     "grunt-contrib-compress": "1.4.3",
     "grunt-contrib-copy": "1.0.0",
@@ -135,14 +135,14 @@
     "matchdep": "2.0.0",
     "minimist": "1.2.0",
     "mocha": "4.1.0",
-    "mock-knex": "0.4.2",
+    "mock-knex": "0.4.3",
     "nock": "9.4.0",
     "proxyquire": "2.1.0",
     "rewire": "3.0.2",
     "should": "13.2.3",
     "should-http": "0.1.1",
     "sinon": "4.4.6",
-    "supertest": "3.3.0",
+    "supertest": "3.4.1",
     "tmp": "0.0.33"
   },
   "greenkeeper": {