diff --git a/wlan-sim-gui/package-lock.json b/wlan-sim-gui/package-lock.json
index 93e74e7..380a7b6 100644
--- a/wlan-sim-gui/package-lock.json
+++ b/wlan-sim-gui/package-lock.json
@@ -459,7 +459,7 @@
         },
         "load-json-file": {
           "version": "2.0.0",
-          "resolved": "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
           "integrity": "sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=",
           "dev": true,
           "requires": {
@@ -527,7 +527,7 @@
         },
         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
         },
@@ -1032,7 +1032,7 @@
     },
     "@types/node": {
       "version": "8.9.5",
-      "resolved": "http://registry.npmjs.org/@types/node/-/node-8.9.5.tgz",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.9.5.tgz",
       "integrity": "sha512-jRHfWsvyMtXdbhnz5CVHxaBgnV6duZnPlQuRSo/dm/GnmikNcmZhxIES4E9OZjUmQ8C+HCl4KJux+cXN/ErGDQ==",
       "dev": true
     },
@@ -1643,7 +1643,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "requires": {
             "ansi-styles": "^2.2.1",
@@ -2071,14 +2071,36 @@
       }
     },
     "browserslist": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.3.4.tgz",
-      "integrity": "sha512-u5iz+ijIMUlmV8blX82VGFrB9ecnUg5qEt55CMZ/YJEhha+d8qpBfOFuutJ6F/VKRXjZoD33b6uvarpPxcl3RA==",
+      "version": "4.16.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
+      "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30000899",
-        "electron-to-chromium": "^1.3.82",
-        "node-releases": "^1.0.1"
+        "caniuse-lite": "^1.0.30001219",
+        "colorette": "^1.2.2",
+        "electron-to-chromium": "^1.3.723",
+        "escalade": "^3.1.1",
+        "node-releases": "^1.1.71"
+      },
+      "dependencies": {
+        "caniuse-lite": {
+          "version": "1.0.30001230",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001230.tgz",
+          "integrity": "sha512-5yBd5nWCBS+jWKTcHOzXwo5xzcj4ePE/yjtkZyUV1BTUmrBaA9MRGC+e7mxnqXSA90CmCA8L3eKLaSUkt099IQ==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.739",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.739.tgz",
+          "integrity": "sha512-+LPJVRsN7hGZ9EIUUiWCpO7l4E3qBYHNadazlucBfsXBbccDFNKUBAgzE68FnkWGJPwD/AfKhSzL+G+Iqb8A4A==",
+          "dev": true
+        },
+        "node-releases": {
+          "version": "1.1.72",
+          "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.72.tgz",
+          "integrity": "sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==",
+          "dev": true
+        }
       }
     },
     "browserstack": {
@@ -2445,6 +2467,12 @@
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
     },
+    "colorette": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
+      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
+      "dev": true
+    },
     "colors": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/colors/-/colors-1.1.2.tgz",
@@ -3474,12 +3502,6 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=",
       "dev": true
     },
-    "electron-to-chromium": {
-      "version": "1.3.84",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.84.tgz",
-      "integrity": "sha512-IYhbzJYOopiTaNWMBp7RjbecUBsbnbDneOP86f3qvS0G0xfzwNSvMJpTrvi5/Y1gU7tg2NAgeg8a8rCYvW9Whw==",
-      "dev": true
-    },
     "elliptic": {
       "version": "6.4.1",
       "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
@@ -3542,7 +3564,7 @@
         },
         "debug": {
           "version": "2.3.3",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
           "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
           "dev": true,
           "requires": {
@@ -3579,7 +3601,7 @@
       "dependencies": {
         "debug": {
           "version": "2.3.3",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
           "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
           "dev": true,
           "requires": {
@@ -3658,6 +3680,12 @@
         "es6-promise": "^4.0.3"
       }
     },
+    "escalade": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==",
+      "dev": true
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -5363,7 +5391,7 @@
     },
     "http-errors": {
       "version": "1.6.3",
-      "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
       "dev": true,
       "requires": {
@@ -6395,7 +6423,7 @@
         },
         "es6-promise": {
           "version": "3.0.2",
-          "resolved": "http://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
           "integrity": "sha1-AQ1YWEI6XxGJeWZfRkhqlcbuK7Y=",
           "dev": true
         },
@@ -6568,7 +6596,7 @@
         },
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         },
@@ -7365,15 +7393,6 @@
         }
       }
     },
-    "node-releases": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.0.3.tgz",
-      "integrity": "sha512-ZaZWMsbuDcetpHmYeKWPO6e63pSXLb50M7lJgCbcM2nC/nQC3daNifmtp5a2kp7EWwYfhuvH6zLPWkrF8IiDdw==",
-      "dev": true,
-      "requires": {
-        "semver": "^5.3.0"
-      }
-    },
     "node-sass": {
       "version": "4.9.3",
       "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.9.3.tgz",
@@ -7424,7 +7443,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "optional": true,
@@ -7813,7 +7832,7 @@
     },
     "os-locale": {
       "version": "1.4.0",
-      "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
       "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
       "dev": true,
       "optional": true,
@@ -8262,7 +8281,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -8981,7 +9000,7 @@
     },
     "sax": {
       "version": "0.5.8",
-      "resolved": "http://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-0.5.8.tgz",
       "integrity": "sha1-1HLbIo6zMcJQaw6MFVJK25OdEsE=",
       "dev": true
     },
@@ -9380,7 +9399,7 @@
       "dependencies": {
         "debug": {
           "version": "2.3.3",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
           "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
           "dev": true,
           "requires": {
@@ -9413,7 +9432,7 @@
       "dependencies": {
         "debug": {
           "version": "2.3.3",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
           "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
           "dev": true,
           "requires": {
@@ -9449,7 +9468,7 @@
       "dependencies": {
         "debug": {
           "version": "2.3.3",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
           "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
           "dev": true,
           "requires": {
@@ -9484,7 +9503,7 @@
         },
         "debug": {
           "version": "2.2.0",
-          "resolved": "http://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
           "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
           "dev": true,
           "requires": {