select browser in e2e

conf.e2e.js

@@ -158,4 +158,17 @@ if (argv.json) {
     config.mochaOpts.reporter = 'reporter-file';
 }
 
+if (argv.firefox) {
+    config.capabilities = {
+         browserName: 'firefox'
+    };
+}
+
+if (argv.ie) {
+    config.capabilities = {
+         browserName: 'internet explorer',
+         version: '11'
+    };
+}
+
 exports.config = config;

run-e2e.js

@@ -41,6 +41,14 @@ function launchProtractor(suit) {
         protractorParams.push('--json');
     }
 
+    if (argv.ie) {
+        protractorParams.push('--ie');
+    }
+
+    if (argv.firefox) {
+        protractorParams.push('--firefox');
+    }
+
     child_process.spawnSync('protractor', protractorParams, {stdio: "inherit"});
 }