diff --git a/package-lock.json b/package-lock.json
index 1be11ca..8b706be 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2266,7 +2266,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -2287,12 +2288,14 @@
                 "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"
@@ -2307,17 +2310,20 @@
                 "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",
@@ -2434,7 +2440,8 @@
                 "inherits": {
                     "version": "2.0.3",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "ini": {
                     "version": "1.3.5",
@@ -2446,6 +2453,7 @@
                     "version": "1.0.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "number-is-nan": "^1.0.0"
                     }
@@ -2460,6 +2468,7 @@
                     "version": "3.0.4",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "brace-expansion": "^1.1.7"
                     }
@@ -2467,12 +2476,14 @@
                 "minimist": {
                     "version": "0.0.8",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "minipass": {
                     "version": "2.3.5",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "safe-buffer": "^5.1.2",
                         "yallist": "^3.0.0"
@@ -2491,6 +2502,7 @@
                     "version": "0.5.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "minimist": "0.0.8"
                     }
@@ -2571,7 +2583,8 @@
                 "number-is-nan": {
                     "version": "1.0.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "object-assign": {
                     "version": "4.1.1",
@@ -2583,6 +2596,7 @@
                     "version": "1.4.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "wrappy": "1"
                     }
@@ -2668,7 +2682,8 @@
                 "safe-buffer": {
                     "version": "5.1.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -2704,6 +2719,7 @@
                     "version": "1.0.2",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "code-point-at": "^1.0.0",
                         "is-fullwidth-code-point": "^1.0.0",
@@ -2723,6 +2739,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -2766,12 +2783,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.3",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
             }
         },
@@ -4901,28 +4920,28 @@
             }
         },
         "request-promise": {
-            "version": "4.2.4",
-            "resolved": "https://registry.npmjs.org/request-promise/-/request-promise-4.2.4.tgz",
-            "integrity": "sha512-8wgMrvE546PzbR5WbYxUQogUnUDfM0S7QIFZMID+J73vdFARkFy+HElj4T+MWYhpXwlLp0EQ8Zoj8xUA0he4Vg==",
+            "version": "4.2.6",
+            "resolved": "https://registry.npmjs.org/request-promise/-/request-promise-4.2.6.tgz",
+            "integrity": "sha512-HCHI3DJJUakkOr8fNoCc73E5nU5bqITjOYFMDrKHYOXWXrgD/SBaC7LjwuPymUprRyuF06UK7hd/lMHkmUXglQ==",
             "requires": {
                 "bluebird": "^3.5.0",
-                "request-promise-core": "1.1.2",
+                "request-promise-core": "1.1.4",
                 "stealthy-require": "^1.1.1",
                 "tough-cookie": "^2.3.3"
             }
         },
         "request-promise-core": {
-            "version": "1.1.2",
-            "resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.2.tgz",
-            "integrity": "sha512-UHYyq1MO8GsefGEt7EprS8UrXsm1TxEvFUX1IMTuSLU2Rh7fTIdFtl8xD7JiEYiWU2dl+NYAjCTksTehQUxPag==",
+            "version": "1.1.4",
+            "resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.4.tgz",
+            "integrity": "sha512-TTbAfBBRdWD7aNNOoVOBH4pN/KigV6LyapYNNlAPA8JwbovRti1E88m3sYAwsLi5ryhPKsE9APwnjFTgdUjTpw==",
             "requires": {
-                "lodash": "^4.17.11"
+                "lodash": "^4.17.19"
             },
             "dependencies": {
                 "lodash": {
-                    "version": "4.17.11",
-                    "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-                    "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
+                    "version": "4.17.21",
+                    "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+                    "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
                 }
             }
         },
@@ -5353,7 +5372,7 @@
         "stealthy-require": {
             "version": "1.1.1",
             "resolved": "https://registry.npmjs.org/stealthy-require/-/stealthy-require-1.1.1.tgz",
-            "integrity": "sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks="
+            "integrity": "sha512-ZnWpYnYugiOVEY5GkcuJK1io5V8QmNYChG62gSit9pQVGErXtrKuPC55ITaVSukmMta5qpMU7vqLt2Lnni4f/g=="
         },
         "stream-to-observable": {
             "version": "0.1.0",