diff --git a/.eslintrc.json b/.eslintrc.json
index 5578eaf..0d2c295 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -5,5 +5,8 @@
     "es6": true,
     "browser": true,
     "node": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 2017
   }
 }
diff --git a/package-lock.json b/package-lock.json
index 89ebc15..07f9ef2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1274,9 +1274,9 @@
       }
     },
     "electron": {
-      "version": "5.0.3",
-      "resolved": "https://registry.npmjs.org/electron/-/electron-5.0.3.tgz",
-      "integrity": "sha512-kgnxPQoTNzu0lKC8ToAktt93mTimgqHZGFCVmTaFjs1G2Bk9VqKHljbQemH+REKAaw1aEgIRn2JCrTe0Dy7fVQ==",
+      "version": "5.0.4",
+      "resolved": "https://registry.npmjs.org/electron/-/electron-5.0.4.tgz",
+      "integrity": "sha512-7QaKorvANvP+azMT7wElx33oLlqw8QxmLs7/outfH7LC5amErk4EUtWDesQ6Zgr+s5pYFbykl8ZtJ4ZGXER05g==",
       "dev": true,
       "requires": {
         "@types/node": "^10.12.18",
@@ -1285,9 +1285,9 @@
       },
       "dependencies": {
         "@types/node": {
-          "version": "10.14.8",
-          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.8.tgz",
-          "integrity": "sha512-I4+DbJEhLEg4/vIy/2gkWDvXBOOtPKV9EnLhYjMoqxcRW+TTZtUftkHktz/a8suoD5mUL7m6ReLrkPvSsCQQmw==",
+          "version": "10.14.9",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.9.tgz",
+          "integrity": "sha512-NelG/dSahlXYtSoVPErrp06tYFrvzj8XLWmKA+X8x0W//4MqbUyZu++giUG/v0bjAT6/Qxa8IjodrfdACyb0Fg==",
           "dev": true
         }
       }
@@ -1318,17 +1318,6 @@
             "ms": "^2.1.1"
           }
         },
-        "fs-extra": {
-          "version": "4.0.3",
-          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-4.0.3.tgz",
-          "integrity": "sha512-q6rbdDd1o2mAnQreO7YADIxf/Whx4AHBiRf6d+/cVT8h44ss+lHgxf1FemcqDnQt9X3ct4McHr+JMGlYSsK7Cg==",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.1.2",
-            "jsonfile": "^4.0.0",
-            "universalify": "^0.1.0"
-          }
-        },
         "minimist": {
           "version": "1.2.0",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
@@ -1786,17 +1775,6 @@
         "debug": "2.6.9",
         "mkdirp": "0.5.1",
         "yauzl": "2.4.1"
-      },
-      "dependencies": {
-        "yauzl": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
-          "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
-          "dev": true,
-          "requires": {
-            "fd-slicer": "~1.0.1"
-          }
-        }
       }
     },
     "extsprintf": {
@@ -1997,6 +1975,17 @@
         "readable-stream": "^2.0.0"
       }
     },
+    "fs-extra": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-4.0.3.tgz",
+      "integrity": "sha512-q6rbdDd1o2mAnQreO7YADIxf/Whx4AHBiRf6d+/cVT8h44ss+lHgxf1FemcqDnQt9X3ct4McHr+JMGlYSsK7Cg==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "jsonfile": "^4.0.0",
+        "universalify": "^0.1.0"
+      }
+    },
     "fs-write-stream-atomic": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz",
@@ -3282,6 +3271,19 @@
       "integrity": "sha1-HADHQ7QzzQpOgHWPe2SldEDZ/wA=",
       "dev": true
     },
+    "load-json-file": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
+      "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "parse-json": "^2.2.0",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0",
+        "strip-bom": "^2.0.0"
+      }
+    },
     "loader-runner": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/loader-runner/-/loader-runner-2.4.0.tgz",
@@ -3426,84 +3428,11 @@
         "trim-newlines": "^1.0.0"
       },
       "dependencies": {
-        "find-up": {
-          "version": "1.1.2",
-          "resolved": "https://registry.npmjs.org/find-up/-/find-up-1.1.2.tgz",
-          "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
-          "dev": true,
-          "requires": {
-            "path-exists": "^2.0.0",
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "load-json-file": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
-          "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.1.2",
-            "parse-json": "^2.2.0",
-            "pify": "^2.0.0",
-            "pinkie-promise": "^2.0.0",
-            "strip-bom": "^2.0.0"
-          }
-        },
         "minimist": {
           "version": "1.2.0",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
           "dev": true
-        },
-        "path-exists": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
-          "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
-          "dev": true,
-          "requires": {
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "path-type": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
-          "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.1.2",
-            "pify": "^2.0.0",
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "read-pkg": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
-          "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
-          "dev": true,
-          "requires": {
-            "load-json-file": "^1.0.0",
-            "normalize-package-data": "^2.3.2",
-            "path-type": "^1.0.0"
-          }
-        },
-        "read-pkg-up": {
-          "version": "1.0.1",
-          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
-          "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
-          "dev": true,
-          "requires": {
-            "find-up": "^1.0.0",
-            "read-pkg": "^1.0.0"
-          }
-        },
-        "strip-bom": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
-          "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
-          "dev": true,
-          "requires": {
-            "is-utf8": "^0.2.0"
-          }
         }
       }
     },
@@ -3875,6 +3804,12 @@
         }
       }
     },
+    "object-keys": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-0.4.0.tgz",
+      "integrity": "sha1-KKaq50KN0sOpLz2V8hM13SBOAzY=",
+      "dev": true
+    },
     "object-visit": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/object-visit/-/object-visit-1.0.1.tgz",
@@ -4093,6 +4028,17 @@
       "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
       "dev": true
     },
+    "path-type": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
+      "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0"
+      }
+    },
     "pbkdf2": {
       "version": "3.0.17",
       "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.17.tgz",
@@ -4227,12 +4173,6 @@
           "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
           "dev": true
         },
-        "object-keys": {
-          "version": "0.4.0",
-          "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-0.4.0.tgz",
-          "integrity": "sha1-KKaq50KN0sOpLz2V8hM13SBOAzY=",
-          "dev": true
-        },
         "readable-stream": {
           "version": "1.1.14",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
@@ -4400,6 +4340,48 @@
         }
       }
     },
+    "read-pkg": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
+      "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
+      "dev": true,
+      "requires": {
+        "load-json-file": "^1.0.0",
+        "normalize-package-data": "^2.3.2",
+        "path-type": "^1.0.0"
+      }
+    },
+    "read-pkg-up": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
+      "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
+      "dev": true,
+      "requires": {
+        "find-up": "^1.0.0",
+        "read-pkg": "^1.0.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-1.1.2.tgz",
+          "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
+          "dev": true,
+          "requires": {
+            "path-exists": "^2.0.0",
+            "pinkie-promise": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
+          "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
+          "dev": true,
+          "requires": {
+            "pinkie-promise": "^2.0.0"
+          }
+        }
+      }
+    },
     "readable-stream": {
       "version": "2.3.6",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
@@ -5084,6 +5066,15 @@
         "ansi-regex": "^2.0.0"
       }
     },
+    "strip-bom": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
+      "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
+      "dev": true,
+      "requires": {
+        "is-utf8": "^0.2.0"
+      }
+    },
     "strip-eof": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
@@ -6217,6 +6208,15 @@
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
       "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
       "dev": true
+    },
+    "yauzl": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
+      "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
+      "dev": true,
+      "requires": {
+        "fd-slicer": "~1.0.1"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index b24b09a..ae54ce5 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "dependencies": {},
   "devDependencies": {
     "@types/webpack": "^4.4.32",
-    "electron": "^5.0.3",
+    "electron": "^5.0.4",
     "eslint": "^5.16.0",
     "eslint-config-prettier": "^5.0.0",
     "eslint-plugin-prettier": "^3.1.0",
diff --git a/tsconfig.json b/tsconfig.json
index c57c40b..513d902 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,7 +6,7 @@
     "sourceMap": true,
     "allowJs": true,
     "preserveConstEnums": false,
-    "lib": ["es6", "dom"],
+    "lib": ["es2017", "dom"],
     "plugins": [
       {
         "name": "typescript-tslint-plugin"