Make test-in-console confirm to new driver spec.

See #6439

packages/test-in-console/driver.js

@@ -103,7 +103,8 @@ var sendReports = function (callback) {
   else
     callback();
 };
-Meteor.startup(function () {
+
+runTests = function () {
   setTimeout(sendReports, 500);
   setInterval(sendReports, 2000);
 
@@ -234,4 +235,4 @@ Meteor.startup(function () {
       logMagic('state', 'done');
     },
     ["tinytest"]);
-});
+}

packages/test-in-console/package.js

@@ -15,4 +15,6 @@ Package.onUse(function (api) {
 
   // This is to be run by phantomjs, not as part of normal package code.
   api.addAssets('runner.js', 'server');
+
+  api.export('runTests');
 });