diff --git a/package-lock.json b/package-lock.json
index 13bf81d..18685ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -382,15 +382,23 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.10.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
-      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
+      },
+      "dependencies": {
+        "fast-deep-equal": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+          "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+          "dev": true
+        }
       }
     },
     "ajv-errors": {
@@ -2500,7 +2508,8 @@
                 "ansi-regex": {
                   "version": "2.1.1",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "aproba": {
                   "version": "1.2.0",
@@ -2521,12 +2530,14 @@
                 "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"
@@ -2541,17 +2552,20 @@
                 "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",
@@ -2668,7 +2682,8 @@
                 "inherits": {
                   "version": "2.0.3",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "ini": {
                   "version": "1.3.5",
@@ -2680,6 +2695,7 @@
                   "version": "1.0.0",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "number-is-nan": "^1.0.0"
                   }
@@ -2694,6 +2710,7 @@
                   "version": "3.0.4",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "brace-expansion": "^1.1.7"
                   }
@@ -2701,12 +2718,14 @@
                 "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"
@@ -2725,6 +2744,7 @@
                   "version": "0.5.1",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "minimist": "0.0.8"
                   }
@@ -2805,7 +2825,8 @@
                 "number-is-nan": {
                   "version": "1.0.1",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "object-assign": {
                   "version": "4.1.1",
@@ -2817,6 +2838,7 @@
                   "version": "1.4.0",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "wrappy": "1"
                   }
@@ -2902,7 +2924,8 @@
                 "safe-buffer": {
                   "version": "5.1.2",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "safer-buffer": {
                   "version": "2.1.2",
@@ -2938,6 +2961,7 @@
                   "version": "1.0.2",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "code-point-at": "^1.0.0",
                     "is-fullwidth-code-point": "^1.0.0",
@@ -2957,6 +2981,7 @@
                   "version": "3.0.1",
                   "bundled": true,
                   "dev": true,
+                  "optional": true,
                   "requires": {
                     "ansi-regex": "^2.0.0"
                   }
@@ -3000,12 +3025,14 @@
                 "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
                 }
               }
             }
@@ -3041,7 +3068,8 @@
             "ansi-regex": {
               "version": "2.1.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "aproba": {
               "version": "1.2.0",
@@ -3062,12 +3090,14 @@
             "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"
@@ -3082,17 +3112,20 @@
             "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",
@@ -3209,7 +3242,8 @@
             "inherits": {
               "version": "2.0.3",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "ini": {
               "version": "1.3.5",
@@ -3221,6 +3255,7 @@
               "version": "1.0.0",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -3235,6 +3270,7 @@
               "version": "3.0.4",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "brace-expansion": "^1.1.7"
               }
@@ -3242,12 +3278,14 @@
             "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"
@@ -3266,6 +3304,7 @@
               "version": "0.5.1",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -3346,7 +3385,8 @@
             "number-is-nan": {
               "version": "1.0.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "object-assign": {
               "version": "4.1.1",
@@ -3358,6 +3398,7 @@
               "version": "1.4.0",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -3443,7 +3484,8 @@
             "safe-buffer": {
               "version": "5.1.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "safer-buffer": {
               "version": "2.1.2",
@@ -3479,6 +3521,7 @@
               "version": "1.0.2",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -3498,6 +3541,7 @@
               "version": "3.0.1",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "ansi-regex": "^2.0.0"
               }
@@ -3541,12 +3585,14 @@
             "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
             }
           }
         },
@@ -4353,12 +4399,6 @@
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
       "dev": true
     },
-    "fast-deep-equal": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
-      "dev": true
-    },
     "fast-json-stable-stringify": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
@@ -4662,7 +4702,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4683,12 +4724,14 @@
         "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"
@@ -4703,17 +4746,20 @@
         "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",
@@ -4830,7 +4876,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4842,6 +4889,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4856,6 +4904,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -4863,12 +4912,14 @@
         "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"
@@ -4887,6 +4938,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4967,7 +5019,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4979,6 +5032,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5064,7 +5118,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5100,6 +5155,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5119,6 +5175,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -5162,12 +5219,14 @@
         "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
         }
       }
     },