Restore robot method and mark as deprecated

index.js

@@ -65,6 +65,14 @@ module.exports = (options = {}) => {
     webhook,
     receive,
 
+    // Return the first robot
+    get robot() {
+      const caller = (new Error()).stack.split('\n')[2];
+      console.warn('DEPRECATED: the `robot` property is deprecated and will be removed in 0.10.0');
+      console.warn(caller);
+      return robots[0] || createRobot({app, cache, logger, catchErrors: true});
+    },
+
     start() {
       server.listen(options.port);
       logger.trace('Listening on http://localhost:' + options.port);

test/fixtures/example.js

@@ -0,0 +1,3 @@
+module.exports = robot => {
+  console.log('laoded plugin');
+}

test/index.js

@@ -79,4 +79,21 @@ describe('Probot', () => {
       expect(spy).toHaveBeenCalled();
     });
   });
+
+  describe('robot', () => {
+    it('will be removed in 0.10', () => {
+      const semver = require('semver');
+      const pkg = require('../package');
+      expect(semver.satisfies(pkg.version, '>=0.9')).toBe(false, 'remove in 0.10.0');
+    });
+
+    it('returns the first defined (for now)', () => {
+      const robot = probot.load(() => { });
+      expect(probot.robot).toBe(robot);
+    });
+
+    it('returns a robot if no plugins are loaded', () => {
+      expect(probot.robot).toExist();
+    });
+  });
 });