diff --git a/package-lock.json b/package-lock.json
index 5af95b2..4884986 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -424,6 +424,12 @@
         "defer-to-connect": "^1.0.1"
       }
     },
+    "@tootallnate/once": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.0.0.tgz",
+      "integrity": "sha512-KYyTT/T6ALPkIRd2Ge080X/BsXvy9O0hcWTtMWkPvwAwF99+vn6Dv4GzrFT/Nn1LePr+FFDbRXXlqmsy9lw2zA==",
+      "dev": true
+    },
     "@types/events": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/@types/events/-/events-3.0.0.tgz",
@@ -499,12 +505,29 @@
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-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
-      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.0.tgz",
+      "integrity": "sha512-j1Q7cSCqN+AwrmDd+pzgqc0/NpC655x2bUf5ZjRIO77DcNBFmh+OgRNzF6OKdCC9RSCb19fGd99+bhXFdkRNqw==",
       "dev": true,
       "requires": {
-        "es6-promisify": "^5.0.0"
+        "debug": "4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
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+        "ms": {
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
       }
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@@ -1605,16 +1628,16 @@
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-      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.5.0.tgz",
-      "integrity": "sha512-/OsWOfIHaQIr7aeZ4pY0UC1PZT6kimoKFOFYFNb6wxo3iw12nRrh+mNGH72rnXxNsq6SGfesVPizm/6Q3XqcFQ==",
+      "version": "3.6.5",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.6.5.tgz",
+      "integrity": "sha512-v48WuDMUug6JXwmmfsMzhCHRnhUf8O3duqXvltaYJKrO1OekZWpB/eH6iIoaxMl8Qli0+u3OxptdsBOYiD7VAQ==",
       "dev": true,
       "requires": {
-        "argv": "^0.0.2",
-        "ignore-walk": "^3.0.1",
-        "js-yaml": "^3.13.1",
-        "teeny-request": "^3.11.3",
-        "urlgrey": "^0.4.4"
+        "argv": "0.0.2",
+        "ignore-walk": "3.0.3",
+        "js-yaml": "3.13.1",
+        "teeny-request": "6.0.1",
+        "urlgrey": "0.4.4"
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@@ -2359,21 +2382,6 @@
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       "dev": true
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-    "es6-promise": {
-      "version": "4.2.8",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
-      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==",
-      "dev": true
-    },
-    "es6-promisify": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
-      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
-      "dev": true,
-      "requires": {
-        "es6-promise": "^4.0.3"
-      }
-    },
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       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -3902,14 +3910,65 @@
         }
       }
     },
+    "http-proxy-agent": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.1.tgz",
+      "integrity": "sha512-k0zdNgqWTGA6aeIRVpvfVob4fL52dTfaehylg0Y4UvSySvOq/Y+BOyPrgpUrA7HylqvU8vIZGsRuXmspskV0Tg==",
+      "dev": true,
+      "requires": {
+        "@tootallnate/once": "1",
+        "agent-base": "6",
+        "debug": "4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
     "https-proxy-agent": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz",
-      "integrity": "sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-4.0.0.tgz",
+      "integrity": "sha512-zoDhWrkR3of1l9QAL8/scJZyLu8j/gBkcwcaQOZh7Gyh/+uJQzGVETdgT30akuwkpL8HTRfssqI3BZuV18teDg==",
       "dev": true,
       "requires": {
-        "agent-base": "^4.1.0",
-        "debug": "^3.1.0"
+        "agent-base": "5",
+        "debug": "4"
+      },
+      "dependencies": {
+        "agent-base": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz",
+          "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g==",
+          "dev": true
+        },
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
       }
     },
     "husky": {
@@ -4088,9 +4147,9 @@
       "dev": true
     },
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-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
-      "integrity": "sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.3.tgz",
+      "integrity": "sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==",
       "dev": true,
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@@ -10826,16 +10885,6 @@
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       "dev": true
     },
-    "remark-license": {
-      "version": "github:niftylettuce/remark-license#17ecb8f64f8f6082414d14f9267a12764e6ddbfb",
-      "from": "github:niftylettuce/remark-license",
-      "dev": true,
-      "requires": {
-        "mdast-util-heading-range": "^2.0.0",
-        "parse-author": "^2.0.0",
-        "spdx-license-list": "^3.0.1"
-      }
-    },
     "remark-lint": {
       "version": "6.0.5",
       "resolved": "https://registry.npmjs.org/remark-lint/-/remark-lint-6.0.5.tgz",
@@ -11530,6 +11579,18 @@
         "retext-english": "^3.0.0",
         "retext-preset-github": "^0.0.5",
         "unified": "^7.0.0"
+      },
+      "dependencies": {
+        "remark-license": {
+          "version": "github:niftylettuce/remark-license#17ecb8f64f8f6082414d14f9267a12764e6ddbfb",
+          "from": "github:niftylettuce/remark-license",
+          "dev": true,
+          "requires": {
+            "mdast-util-heading-range": "^2.0.0",
+            "parse-author": "^2.0.0",
+            "spdx-license-list": "^3.0.1"
+          }
+        }
       }
     },
     "remark-preset-lint-recommended": {
@@ -12715,6 +12776,15 @@
       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=",
       "dev": true
     },
+    "stream-events": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.5.tgz",
+      "integrity": "sha512-E1GUzBSgvct8Jsb3v2X15pjzN1tYebtbLaMg+eBOUOAxgbLoSbT2NS91ckc5lJD1KfLjId+jXJRgo0qnV5Nerg==",
+      "dev": true,
+      "requires": {
+        "stubs": "^3.0.0"
+      }
+    },
     "string-argv": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.0.2.tgz",
@@ -12837,6 +12907,12 @@
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
       "dev": true
     },
+    "stubs": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/stubs/-/stubs-3.0.0.tgz",
+      "integrity": "sha1-6NK6H6nJBXAwPAMLaQD31fiavls=",
+      "dev": true
+    },
     "supertap": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supertap/-/supertap-1.0.0.tgz",
@@ -12940,13 +13016,15 @@
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     "teeny-request": {
-      "version": "3.11.3",
-      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-3.11.3.tgz",
-      "integrity": "sha512-CKncqSF7sH6p4rzCgkb/z/Pcos5efl0DmolzvlqRQUNcpRIruOhY9+T1FsIlyEbfWd7MsFpodROOwHYh2BaXzw==",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-6.0.1.tgz",
+      "integrity": "sha512-TAK0c9a00ELOqLrZ49cFxvPVogMUFaWY8dUsQc/0CuQPGF+BOxOQzXfE413BAk2kLomwNplvdtMpeaeGWmoc2g==",
       "dev": true,
       "requires": {
-        "https-proxy-agent": "^2.2.1",
+        "http-proxy-agent": "^4.0.0",
+        "https-proxy-agent": "^4.0.0",
         "node-fetch": "^2.2.0",
+        "stream-events": "^1.0.5",
         "uuid": "^3.3.2"
       }
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@@ -13449,7 +13527,8 @@
             "ansi-regex": {
               "version": "2.1.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "aproba": {
               "version": "1.2.0",
@@ -13470,12 +13549,14 @@
             "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"
@@ -13490,17 +13571,20 @@
             "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",
@@ -13617,7 +13701,8 @@
             "inherits": {
               "version": "2.0.3",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "ini": {
               "version": "1.3.5",
@@ -13629,6 +13714,7 @@
               "version": "1.0.0",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -13643,6 +13729,7 @@
               "version": "3.0.4",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "brace-expansion": "^1.1.7"
               }
@@ -13650,12 +13737,14 @@
             "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"
@@ -13674,6 +13763,7 @@
               "version": "0.5.1",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -13754,7 +13844,8 @@
             "number-is-nan": {
               "version": "1.0.1",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "object-assign": {
               "version": "4.1.1",
@@ -13766,6 +13857,7 @@
               "version": "1.4.0",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -13851,7 +13943,8 @@
             "safe-buffer": {
               "version": "5.1.2",
               "bundled": true,
-              "dev": true
+              "dev": true,
+              "optional": true
             },
             "safer-buffer": {
               "version": "2.1.2",
@@ -13887,6 +13980,7 @@
               "version": "1.0.2",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -13906,6 +14000,7 @@
               "version": "3.0.1",
               "bundled": true,
               "dev": true,
+              "optional": true,
               "requires": {
                 "ansi-regex": "^2.0.0"
               }
@@ -13949,12 +14044,14 @@
             "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
             }
           }
         },