replace beforeAction plugin api with event action api

lib/contracts/deploy.js

@@ -186,34 +186,7 @@ class Deploy {
         });
       },
       function applyBeforeDeploy(next) {
-        let beforeDeployPlugins = self.plugins.getPluginsFor('beforeDeploy');
-
-        //self.logger.info("applying beforeDeploy plugins...", beforeDeployPlugins.length);
-        async.eachSeries(beforeDeployPlugins, (plugin, eachPluginCb) => {
-          self.logger.info(__("running beforeDeploy plugin %s .", plugin.name));
-
-          // calling each beforeDeploy handler declared by the plugin
-          async.eachSeries(plugin.beforeDeploy, (beforeDeployFn, eachCb) => {
-            function beforeDeployCb(resObj){
-              contract.code = resObj.contractCode;
-              eachCb();
-            }
-            beforeDeployFn({
-              embarkDeploy:       self,
-              pluginConfig:       plugin.pluginConfig,
-              deploymentAccount:  deploymentAccount,
-              contract:           contract,
-              callback: beforeDeployCb
-            }, beforeDeployCb);
-          }, () => {
-            //self.logger.info('All beforeDeploy handlers of the plugin has processed.');
-            eachPluginCb();
-          });
-        }, () => {
-          //self.logger.info('All beforeDeploy plugins has been processed.');
-          contractCode = contract.code;
-          next();
-        });
+        self.plugins.runActionsForEvent('deploy:contract:beforeDeploy', {contract: contract}, next);
       },
       function createDeployObject(next) {
         let contractObject = self.blockchain.ContractObject({abi: contract.abiDefinition});

test_apps/test_app/extensions/embark-service/index.js

@@ -23,9 +23,12 @@ module.exports = function (embark) {
   embark.addFileToPipeline('./fileInPipeline.js');
   embark.addFileToPipeline('./fileInPipeline.js', 'js/fileInPipeline.js');
 
-  embark.registerBeforeDeploy(function (options, callback) {
-    // Just calling register to prove it works. We don't actually want to change the contracts
-    callback({contractCode: options.contract.code});
+  embark.registerActionForEvent("deploy:contract:beforeDeploy", (params, cb) => {
+    embark.logger.info("applying beforeDeploy plugin...");
+    //console.dir(params);
+    //console.dir(cb);
+    //console.dir('------------------');
+    cb();
   });
 
   // NOTE: uncommenting this will make dappConnection stop working