Repository: wso2/testgrid
Issue: Waiting for server startup in AWS logic does not work 

**Description:**

I'm seeing below error when running the `run-test-plan`. The cloudformation scripts need to properly present the serverURLs in order to wait for the server startup.

```log
[2018-02-02 13:58:25,516]  INFO {org.wso2.testgrid.infrastructure.aws.AWSManager} - Waiting for stack : wso2-is-public-branch-AZ63FR

[2018-02-02 14:06:19,792]  INFO {org.wso2.testgrid.infrastructure.aws.AWSManager} - Stack : wso2-is-public-branch-AZ63FR creation completed !
[2018-02-02 14:06:20,128]  INFO {org.wso2.testgrid.infrastructure.aws.AWSManager} - Created a CloudFormation Stack with the name :wso2-is-public-branch-AZ63FR
[2018-02-02 14:06:20,141]  INFO {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Deploying the pattern.. : cloudformation-templates/pattern-2
[2018-02-02 14:06:20,142]  INFO {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Waiting for server startup..
[2018-02-02 14:06:20,143] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : ec2-52-54-230-106.compute-1.amazonaws.com is Not a Valid URL, hence skipping to next value..
[2018-02-02 14:06:20,144] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : 8080 is Not a Valid URL, hence skipping to next value..
[2018-02-02 14:06:20,146] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : 10.0.1.213 is Not a Valid URL, hence skipping to next value..
[2018-02-02 14:06:20,153] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : 10.0.1.221 is Not a Valid URL, hence skipping to next value..
[2018-02-02 14:06:20,153] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : 3306 is Not a Valid URL, hence skipping to next value..
[2018-02-02 14:06:20,155] ERROR {org.wso2.testgrid.deployment.deployers.AWSDeployer} - Output Value : 35.168.246.85 is Not a Valid URL, hence skipping to next value..
```

**Affected Product Version:**
0.9.0-m11

**Steps to reproduce:**
Run cloudformation-is 


Changed files:
deployment/src/main/java/org/wso2/testgrid/deployment/deployers/AWSDeployer.java

diff --git a/deployment/src/main/java/org/wso2/testgrid/deployment/deployers/AWSDeployer.java b/deployment/src/main/java/org/wso2/testgrid/deployment/deployers/AWSDeployer.java
index a9b1b739..f743dd34 100644
--- a/deployment/src/main/java/org/wso2/testgrid/deployment/deployers/AWSDeployer.java
+++ b/deployment/src/main/java/org/wso2/testgrid/deployment/deployers/AWSDeployer.java
@@ -56,12 +56,12 @@ public class AWSDeployer implements DeployerService {
         try {
             logger.info(StringUtil.concatStrings("Deploying the pattern.. : ", deployment.getName()));
             DeploymentValidator validator = new DeploymentValidator();
-            logger.info("Waiting for server startup..");
             for (Host host : deployment.getHosts()) {
                 try {
                     new URL(host.getIp());
+                    logger.info("Waiting for server startup on URL : " + host.getIp());
                 } catch (MalformedURLException e) {
-                    logger.error(StringUtil.concatStrings("Output Value : ", host.getIp(), " is Not a Valid URL, " +
+                    logger.debug(StringUtil.concatStrings("Output Value : ", host.getIp(), " is Not a Valid URL, " +
                             "hence skipping to next value.."));
                     continue;
                 }