diff --git a/package-lock.json b/package-lock.json
index 7bd1162..0fce6ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -136,6 +136,141 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@commitlint/execute-rule": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/execute-rule/-/execute-rule-8.1.0.tgz",
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+      "dev": true,
+      "optional": true
+    },
+    "@commitlint/load": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/load/-/load-8.1.0.tgz",
+      "integrity": "sha512-ra02Dvmd7Gp1+uFLzTY3yGOpHjPzl5T9wYg/xrtPJNiOWXvQ0Mw7THw+ucd1M5iLUWjvdavv2N87YDRc428wHg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "@commitlint/execute-rule": "^8.1.0",
+        "@commitlint/resolve-extends": "^8.1.0",
+        "babel-runtime": "^6.23.0",
+        "chalk": "2.4.2",
+        "cosmiconfig": "^5.2.0",
+        "lodash": "4.17.14",
+        "resolve-from": "^5.0.0"
+      },
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+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-2.0.0.tgz",
+          "integrity": "sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "caller-callsite": "^2.0.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "cosmiconfig": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-5.2.1.tgz",
+          "integrity": "sha512-H65gsXo1SKjf8zmrJ67eJk8aIRKV5ff2D4uKZIBZShbhGSpEmsQOPW/SKMKYhSTrqR7ufy6RP69rPogdaPh/kA==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "import-fresh": "^2.0.0",
+            "is-directory": "^0.3.1",
+            "js-yaml": "^3.13.1",
+            "parse-json": "^4.0.0"
+          }
+        },
+        "import-fresh": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-2.0.0.tgz",
+          "integrity": "sha1-2BNVwVYS04bGH53dOSLUMEgipUY=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "caller-path": "^2.0.0",
+            "resolve-from": "^3.0.0"
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+              "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-3.0.0.tgz",
+              "integrity": "sha1-six699nWiBvItuZTM17rywoYh0g=",
+              "dev": true,
+              "optional": true
+            }
+          }
+        },
+        "js-yaml": {
+          "version": "3.13.1",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+          "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
+        "lodash": {
+          "version": "4.17.14",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+          "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+          "dev": true,
+          "optional": true
+        },
+        "resolve-from": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+          "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
+    "@commitlint/resolve-extends": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@commitlint/resolve-extends/-/resolve-extends-8.1.0.tgz",
+      "integrity": "sha512-r/y+CeKW72Oa9BUctS1+I/MFCDiI3lfhwfQ65Tpfn6eZ4CuBYKzrCRi++GTHeAFKE3y8q1epJq5Rl/1GBejtBw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "@types/node": "^12.0.2",
+        "import-fresh": "^3.0.0",
+        "lodash": "4.17.14",
+        "resolve-from": "^5.0.0",
+        "resolve-global": "^1.0.0"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.14",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+          "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+          "dev": true,
+          "optional": true
+        },
+        "resolve-from": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+          "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "@sinonjs/commons": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.3.0.tgz",
@@ -171,6 +306,13 @@
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       "dev": true
     },
+    "@types/node": {
+      "version": "12.6.8",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.6.8.tgz",
+      "integrity": "sha512-aX+gFgA5GHcDi89KG5keey2zf0WfZk/HAQotEamsK2kbey+8yGKcson0hbK8E+v0NArlCJQCqMP161YhV6ZXLg==",
+      "dev": true,
+      "optional": true
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -1226,6 +1368,25 @@
         "unset-value": "^1.0.0"
       }
     },
+    "caller-callsite": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/caller-callsite/-/caller-callsite-2.0.0.tgz",
+      "integrity": "sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "callsites": "^2.0.0"
+      },
+      "dependencies": {
+        "callsites": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/callsites/-/callsites-2.0.0.tgz",
+          "integrity": "sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "caller-path": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
@@ -1418,9 +1579,9 @@
       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
     },
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-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz",
-      "integrity": "sha1-XblXOdbCEqy+e29lahG5QLqmiUY=",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/conventional-commit-types/-/conventional-commit-types-2.1.1.tgz",
+      "integrity": "sha512-0Ts+fEdmjqYDOQ1yZ+LNgdSPO335XZw9qC10M7CxtLP3nIMGmeMhmkM8Taffa4+MXN13bRPlp0CtH+QfOzKTzw==",
       "dev": true
     },
     "cookie": {
@@ -1586,16 +1747,31 @@
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     "cz-conventional-changelog": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz",
-      "integrity": "sha1-L0vHOQ4yROTfKT5ro1Hkx0Cnx2Q=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-3.0.0.tgz",
+      "integrity": "sha512-d6yoDVs00HLXhq1EwRNLk1jUb+0TkTW4mGP7hHMQjDnkNFpLmJdte2Hqd4K34yYt3QZGQ9WPKW2e5tjMxvFsLA==",
       "dev": true,
       "requires": {
+        "@commitlint/load": ">6.1.1",
+        "chalk": "^2.4.1",
         "conventional-commit-types": "^2.0.0",
         "lodash.map": "^4.5.1",
         "longest": "^1.0.1",
         "right-pad": "^1.0.1",
         "word-wrap": "^1.0.3"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        }
       }
     },
     "dashdash": {
@@ -3284,7 +3460,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
             "ansi-regex": "^2.0.0"
@@ -3345,6 +3521,16 @@
         "path-is-absolute": "^1.0.0"
       }
     },
+    "global-dirs": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/global-dirs/-/global-dirs-0.1.1.tgz",
+      "integrity": "sha1-sxnA3UYH81PzvpzKTHL8FIxJ9EU=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "ini": "^1.3.4"
+      }
+    },
     "global-modules": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/global-modules/-/global-modules-1.0.0.tgz",
@@ -3575,6 +3761,26 @@
         "minimatch": "^3.0.4"
       }
     },
+    "import-fresh": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.1.0.tgz",
+      "integrity": "sha512-PpuksHKGt8rXfWEr9m9EHIpgyyaltBy8+eF6GJM0QCAxMgxCfucMF3mjecK2QsJr0amJW7gTqh5/wht0z2UhEQ==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "parent-module": "^1.0.0",
+        "resolve-from": "^4.0.0"
+      },
+      "dependencies": {
+        "resolve-from": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
+          "integrity": "sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "imurmurhash": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
@@ -4413,23 +4619,6 @@
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-    "node-pre-gyp": {
-      "version": "0.10.2",
-      "resolved": "https://registry.npmjs.org/node-pre-gyp/-/node-pre-gyp-0.10.2.tgz",
-      "integrity": "sha512-16lql9QTqs6KsB9fl3neWyZm02KxIKdI9FlJjrB0y7eMTP5Nyz+xalwPbOlw3iw7EejllJPmlJSnY711PLD1ug==",
-      "requires": {
-        "detect-libc": "^1.0.2",
-        "mkdirp": "^0.5.1",
-        "needle": "^2.2.0",
-        "nopt": "^4.0.1",
-        "npm-packlist": "^1.1.6",
-        "npmlog": "^4.0.2",
-        "rc": "^1.2.7",
-        "rimraf": "^2.6.1",
-        "semver": "^5.3.0",
-        "tar": "^4"
-      }
-    },
     "nopt": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/nopt/-/nopt-4.0.1.tgz",
@@ -4542,6 +4731,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -4866,7 +5056,8 @@
         "is-buffer": {
           "version": "1.1.6",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-builtin-module": {
           "version": "1.0.0",
@@ -4950,6 +5141,7 @@
           "version": "3.2.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -4996,7 +5188,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",
@@ -5262,7 +5455,8 @@
         "repeat-string": {
           "version": "1.6.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "require-directory": {
           "version": "2.1.1",
@@ -5852,6 +6046,25 @@
       "resolved": "https://registry.npmjs.org/packet-reader/-/packet-reader-0.3.1.tgz",
       "integrity": "sha1-zWLmCvjX/qinBexP+ZCHHEaHHyc="
     },
+    "parent-module": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
+      "integrity": "sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "callsites": "^3.0.0"
+      },
+      "dependencies": {
+        "callsites": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+          "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "parse-filepath": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/parse-filepath/-/parse-filepath-1.0.2.tgz",
@@ -6345,6 +6558,16 @@
       "integrity": "sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=",
       "dev": true
     },
+    "resolve-global": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-global/-/resolve-global-1.0.0.tgz",
+      "integrity": "sha512-zFa12V4OLtT5XUX/Q4VLvTfBf+Ok0SPc1FNGM/z9ctUdiU618qwKpWnd0CHs3+RqROfyEg/DhuHbMWYqcgljEw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "global-dirs": "^0.1.1"
+      }
+    },
     "resolve-url": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz",
@@ -6907,6 +7130,25 @@
         "nan": "~2.10.0",
         "node-pre-gyp": "^0.10.3",
         "request": "^2.87.0"
+      },
+      "dependencies": {
+        "node-pre-gyp": {
+          "version": "0.10.3",
+          "resolved": "https://registry.npmjs.org/node-pre-gyp/-/node-pre-gyp-0.10.3.tgz",
+          "integrity": "sha512-d1xFs+C/IPS8Id0qPTZ4bUT8wWryfR/OzzAFxweG+uLN85oPzyo2Iw6bVlLQ/JOdgNonXLCoRyqDzDWq4iw72A==",
+          "requires": {
+            "detect-libc": "^1.0.2",
+            "mkdirp": "^0.5.1",
+            "needle": "^2.2.1",
+            "nopt": "^4.0.1",
+            "npm-packlist": "^1.1.6",
+            "npmlog": "^4.0.2",
+            "rc": "^1.2.7",
+            "rimraf": "^2.6.1",
+            "semver": "^5.3.0",
+            "tar": "^4"
+          }
+        }
       }
     },
     "sshpk": {
diff --git a/package.json b/package.json
index 438f2b5..40d0a65 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "chai": "^4.1.2",
     "chai-as-promised": "^7.1.1",
     "coveralls": "^3.0.1",
-    "cz-conventional-changelog": "^2.1.0",
+    "cz-conventional-changelog": "^3.0.0",
     "eslint": "^5.0.0",
     "husky": "^1.0.0",
     "mocha": "^5.2.0",