Split secure_server_client_certificate test in two, because of session cache.

tests/standalone/io/web_socket_test.dart

Index: tests/standalone/io/web_socket_test.dart
diff --git a/tests/standalone/io/web_socket_test.dart b/tests/standalone/io/web_socket_test.dart
index 31d7a2f3648dcc7ecfdbf7b9866cbe549032add5..26d3202e6d308686c27eb8780718fd3c0099030f 100644
--- a/tests/standalone/io/web_socket_test.dart
+++ b/tests/standalone/io/web_socket_test.dart
@@ -250,8 +250,8 @@ class SecurityConfiguration {
 
 
   void testUsePOST() {
+    asyncStart();
     createServer().then((server) {
-      asyncStart();
       server.transform(new WebSocketTransformer()).listen((webSocket) {
         Expect.fail("No connection expected");
       }, onError: (e) {
@@ -336,7 +336,7 @@ class SecurityConfiguration {
     });
   }
 
-  testIndivitualUpgrade(int connections) {
+  testIndividualUpgrade(int connections) {
     createServer().then((server) {
       server.listen((request) {
           if (WebSocketTransformer.isUpgradeRequest(request)) {
@@ -402,7 +402,7 @@ class SecurityConfiguration {
     testNoUpgrade();
     testUsePOST();
     testConnections(10, 3002, "Got tired");
-    testIndivitualUpgrade(5);
+    testIndividualUpgrade(5);
   }
 }
 
@@ -415,7 +415,9 @@ void initializeSSL() {
 
 
 main() {
+  asyncStart();
   new SecurityConfiguration(secure: false).runTests();
   initializeSSL();
   new SecurityConfiguration(secure: true).runTests();
+  asyncEnd();
 }