Add descriptions for what teach test does

test/app-flow-test.js

@@ -1,5 +1,10 @@
 #!/usr/bin/env node
 
+/*
+ * This tests an app flow on the cloudron. User installs
+ * an app, tries to configure and then uninstall it.
+ */
+
 'use strict';
 
 var AppStore = require('../appstore.js'),

test/cloudron-user-test.js

@@ -2,6 +2,12 @@
 
 'use strict';
 
+/*
+ * This tests a flow for the cloudron 'user. The cloudron 
+ * owner create a new user. This new user should be able to
+ * login with the resetToken.
+ */
+
 var AppStore = require('../appstore.js'),
     assert = require('assert'),
     Cloudron = require('../cloudron.js'),

test/new-user-test.js

@@ -1,5 +1,11 @@
 #!/usr/bin/env node
 
+/*
+ * This tests a flow for cloudron owner creating a cloudron
+ * from the appstore. Owner creates a cloudron, activates
+ * it, installs and app and deletes the cloudron eventually
+ */
+
 'use strict';
 
 var AppStore = require('../appstore.js'),

test/update-test.js

@@ -1,5 +1,11 @@
 #!/usr/bin/env node
 
+/*
+ * This tests a flow for the cloudron owner updating a cloudron.
+ * It checks if an existing installed app retains it's data after
+ * an update.
+ */
+
 'use strict';
 
 var AppStore = require('../appstore.js'),