CLI for parse-live-query-server (#2765)

* adds CLI for parse-live-query-server, adds ability to start parse-server with live-query server

* Don't crash when the message is badly formatted

src/cli/utils/runner.js

@@ -0,0 +1,37 @@
+
+import program from './commander';
+import { mergeWithOptions } from './commander';
+
+function logStartupOptions(options) {
+  for (let key in options) {
+    let value = options[key];
+    if (key == "masterKey") {
+      value = "***REDACTED***";
+    }
+    if (typeof value === 'object') {
+      value = JSON.stringify(value);
+    }
+    console.log(`${key}: ${value}`);
+  }
+}
+
+export default function({
+  definitions,
+  help,
+  usage,
+  start
+}) {
+  program.loadDefinitions(definitions);
+  if (usage) {
+    program.usage(usage);
+  }
+  if (help) {
+    program.on('--help', help);
+  }
+  program.parse(process.argv, process.env);
+
+  let options = program.getOptions();
+  start(program, options, function() {
+    logStartupOptions(options);
+  });
+}