add new events for output generation and first deployment

docs/plugins.rst

@@ -277,6 +277,9 @@ This call is used to listen and react to events that happen in Embark such as co
       a file change, args is (filetype, path)
     * "abi", "abi-vanila", "abi-contracts-vanila" - triggered when contracts
       have been deployed and returns the generated JS code
+    *  "outputDone" - triggered when dapp is (re)generated
+    * "firstDeploymentDone" - triggered when the dapp is deployed and generated
+      for the first time
 
 .. code:: javascript
 

lib/core/engine.js

@@ -74,11 +74,13 @@ Engine.prototype.pipelineService = function(options) {
   this.events.on('abi', function(abi) {
     self.currentAbi = abi;
     pipeline.build(abi);
+    self.events.emit('outputDone');
   });
   this.events.on('file-event', function(fileType, path) {
     if (fileType === 'asset') {
       self.config.reloadConfig();
       pipeline.build(self.abi, path);
+      self.events.emit('outputDone');
     }
   });
 };

lib/index.js

@@ -127,6 +127,7 @@ var Embark = {
         engine.logger.setStatus("Ready".green);
         engine.logger.info("Looking for documentation? you can find it at ".cyan + "http://embark.readthedocs.io/".green.underline);
         engine.logger.info("Ready".underline);
+        engine.events.emit('firstDeploymentDone');
       }
     });
   },