diff --git a/package-lock.json b/package-lock.json
index 5aa29d2..342c72d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4331,7 +4331,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -4352,12 +4353,14 @@
                 "balanced-match": {
                     "version": "1.0.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "brace-expansion": {
                     "version": "1.1.11",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "balanced-match": "^1.0.0",
                         "concat-map": "0.0.1"
@@ -4372,17 +4375,20 @@
                 "code-point-at": {
                     "version": "1.1.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "concat-map": {
                     "version": "0.0.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "console-control-strings": {
                     "version": "1.1.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "core-util-is": {
                     "version": "1.0.2",
@@ -4499,7 +4505,8 @@
                 "inherits": {
                     "version": "2.0.3",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "ini": {
                     "version": "1.3.5",
@@ -4511,6 +4518,7 @@
                     "version": "1.0.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "number-is-nan": "^1.0.0"
                     }
@@ -4525,6 +4533,7 @@
                     "version": "3.0.4",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "brace-expansion": "^1.1.7"
                     }
@@ -4532,12 +4541,14 @@
                 "minimist": {
                     "version": "0.0.8",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "minipass": {
                     "version": "2.2.4",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "safe-buffer": "^5.1.1",
                         "yallist": "^3.0.0"
@@ -4556,6 +4567,7 @@
                     "version": "0.5.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "minimist": "0.0.8"
                     }
@@ -4636,7 +4648,8 @@
                 "number-is-nan": {
                     "version": "1.0.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "object-assign": {
                     "version": "4.1.1",
@@ -4648,6 +4661,7 @@
                     "version": "1.4.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "wrappy": "1"
                     }
@@ -4733,7 +4747,8 @@
                 "safe-buffer": {
                     "version": "5.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -4769,6 +4784,7 @@
                     "version": "1.0.2",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "code-point-at": "^1.0.0",
                         "is-fullwidth-code-point": "^1.0.0",
@@ -4788,6 +4804,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -4831,12 +4848,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
             }
         },
@@ -11001,9 +11020,9 @@
             "dev": true
         },
         "qs": {
-            "version": "6.4.0",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
-            "integrity": "sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=",
+            "version": "6.4.1",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.1.tgz",
+            "integrity": "sha512-LQy1Q1fcva/UsnP/6Iaa4lVeM49WiOitu2T4hZCyA/elLKu37L99qcBJk4VCCk+rdLvnMzfKyiN3SZTqdAZGSQ==",
             "dev": true
         },
         "query-string": {
@@ -11493,9 +11512,9 @@
                     "dev": true
                 },
                 "qs": {
-                    "version": "6.5.2",
-                    "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-                    "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
+                    "version": "6.5.3",
+                    "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.3.tgz",
+                    "integrity": "sha512-qxXIEh4pCGfHICj1mAJQ2/2XVZkjCDTcEgfoSQxc/fYivUZxTkk7L3bDBJSoNrEzXI17oUO5Dp07ktqE5KzczA==",
                     "dev": true
                 },
                 "tunnel-agent": {