Retry auto-install of modules that fail

- introduces autoInstallModulesRetry - default 30000
 - backs off interval if repeated failures
 - fixes notification to the editor of an auto-reinstall

test/red/api/nodes_spec.js

@@ -22,7 +22,6 @@ var sinon = require('sinon');
 var when = require('when');
 
 var nodes = require("../../../red/api/nodes");
-var comms = require("../../../red/api/comms");
 var locales = require("../../../red/api/locales");
 
 describe("nodes api", function() {
@@ -35,6 +34,9 @@ describe("nodes api", function() {
             info: function(){},
             warn: function(){}
         }
+        runtime.events = {
+            emit: function(){}
+        }
         nodes.init(runtime);
 
     }
@@ -49,15 +51,11 @@ describe("nodes api", function() {
         app.put(/\/nodes\/((@[^\/]+\/)?[^\/]+)$/,nodes.putModule);
         app.put(/\/nodes\/((@[^\/]+\/)?[^\/]+)\/([^\/]+)$/,nodes.putSet);
         app.delete("/nodes/:id",nodes.delete);
-        sinon.stub(comms,"publish");
         sinon.stub(locales,"determineLangFromHeaders", function() {
             return "en-US";
         });
     });
 
-    after(function() {
-        comms.publish.restore();
-    });
 
     describe('get nodes', function() {
         it('returns node list', function(done) {

test/red/runtime/index_spec.js

@@ -141,7 +141,7 @@ describe("runtime", function() {
                     {  module:"node-red",enabled:true,loaded:false,types:["typeC","typeD"]} // missing
                 ].filter(cb);
             });
-            var serverInstallModule = sinon.stub(redNodes,"installModule",function(name) { return when.resolve();});
+            var serverInstallModule = sinon.stub(redNodes,"installModule",function(name) { return when.resolve({nodes:[]});});
             runtime.init({testSettings: true, autoInstallModules:true, httpAdminRoot:"/", load:function() { return when.resolve();}});
             sinon.stub(console,"log");
             runtime.start().then(function() {