Fix dependencies vulnerabilities.

Update eslint rules settings.
Update ascii2mathml to v0.6.x and fix for importing to receive default export.

Author: shellyln

.eslintrc

@@ -6,19 +6,18 @@
   "rules": {
     "array-bracket-spacing": [ 2, "always" ],
     "block-scoped-var": 2,
-    "brace-style": [ 2, "1tbs", { allowSingleLine: true } ],
+    "brace-style": [ 2, "1tbs", { "allowSingleLine": true } ],
     "comma-dangle": [ 2, "never" ],
     "comma-spacing": 2,
     "comma-style": 2,
-    "consistent-this": [ 2, self ],
+    "consistent-this": [ 2, "self" ],
     "consistent-return": 2,
     "curly": 2,
     "dot-notation": 2,
     "eol-last": 2,
     "eqeqeq": 2,
     "guard-for-in": 2,
     "handle-callback-err": 2,
-    "indent": [ 2, 2, { "VariableDeclarator": { "var": 2, "let": 2, "const": 3 } } ],
     "max-depth": [ 1, 6 ],
     "max-nested-callbacks": [ 1, 4 ],
     "max-len": [ 2, 120, 1000 ],
@@ -39,7 +38,6 @@
     "no-div-regex": 2,
     "no-empty": 2,
     "no-empty-character-class": 2,
-    "no-empty-label": 2,
     "no-else-return": 2,
     "no-eq-null": 2,
     "no-ex-assign": 2,
@@ -96,16 +94,15 @@
     "radix": 2,
     "semi": 2,
     "semi-spacing": [ 2, { "before": false, "after": true } ],
-    "space-after-keywords": [ 2, "always" ],
+    "keyword-spacing": [ 2, { "before": true, "after": true } ],
     "space-before-blocks": 2,
     "space-in-parens": [ 2, "never" ],
     "space-infix-ops": 2,
-    "space-return-throw-case": 2,
     "space-unary-ops": 2,
     "spaced-comment": [ 2, "always", { "exceptions": [ "/" ] } ],
     "strict": [ 2, "global" ],
     "use-isnan": 2,
     "yoda": 2,
-    "valid-typeof": 2,
+    "valid-typeof": 2
   }
 }

index.js

@@ -202,7 +202,7 @@ function makeMath_block(open, close) {
 function makeMathRenderer(renderingOptions) {
   if (ascii2mathml === null) {
     try {
-      ascii2mathml = require('ascii2mathml');
+      ascii2mathml = require('ascii2mathml').default;
     } catch (e) {
       return renderingOptions && renderingOptions.display === 'block' ?
         function(tokens, idx) {