Bump handlebars from 4.1.2 to 4.7.7

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.1.2 to 4.7.7.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.7.7)

Signed-off-by: dependabot[bot] <support@github.com>

README.md

@@ -1,5 +1,6 @@
 [![npm version](https://img.shields.io/npm/v/fa-diagrams.svg)](https://www.npmjs.com/package/fa-diagrams)
 [![Build Status](https://img.shields.io/travis/Klemek/fa-diagrams.svg?branch=master)](https://travis-ci.org/Klemek/fa-diagrams)
+[![Scc Count Badge](https://sloc.xyz/github/klemek/fa-diagrams/?category=code)](https://github.com/boyter/scc/#badges-beta)
 [![Coverage Status](https://img.shields.io/coveralls/github/Klemek/fa-diagrams.svg?branch=master)](https://coveralls.io/github/Klemek/fa-diagrams?branch=master)
 [![Language grade: JavaScript](https://img.shields.io/lgtm/grade/javascript/g/Klemek/fa-diagrams.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Klemek/fa-diagrams/context:javascript)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/Klemek/fa-diagrams.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/Klemek/fa-diagrams/alerts/)

package-lock.json

@@ -3028,15 +3028,30 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.1.2",
+      "version": "4.7.7",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "integrity": "sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==",
       "dev": true,
       "requires": {
+        "minimist": "^1.2.5",
         "neo-async": "^2.6.0",
-        "optimist": "^0.6.1",
         "source-map": "^0.6.1",
-        "uglify-js": "^3.1.4"
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+          "dev": true
+        },
+        "wordwrap": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+          "dev": true
+        }
       }
     },
     "har-schema": {
@@ -4880,24 +4895,6 @@
         "wrappy": "1"
       }
     },
-    "optimist": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "dev": true,
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.10",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=",
-          "dev": true
-        }
-      }
-    },
     "optionator": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
@@ -6592,12 +6589,6 @@
         "string-width": "^1.0.2 || 2"
       }
     },
-    "wordwrap": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
-      "dev": true
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",