Ignore certificate errors by default, as before with Chrome

lib/cli/cli.js

@@ -644,6 +644,13 @@ module.exports.parseCommandLine = function parseCommandLine() {
         'Enables CPU throttling to emulate slow CPUs. Throttling rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc)',
       group: 'Chrome'
     })
+    .option('browsertime.chrome.ignoreCertificateErrors', {
+      alias: 'chrome.ignoreCertificateErrors',
+      type: 'boolean',
+      default: true,
+      describe: 'Make Chrome ignore certificate errors.  Defaults to true.',
+      group: 'Chrome'
+    })
     .option('thirdParty.cpu', {
       type: 'boolean',
       describe: