[WHIRR-123] - Cassandra integration tests hang if whirr's scripts bucket is missing
[WHIRR-127] - binary assembly from WHIRR-100 is not generated as part of release process
[WHIRR-128] - In ec2 instances instead of public dns names a public ip address is resolved for the started master node which causes workers to not be able to connect back to the master
[WHIRR-137] - Allow use of an arbitrary AMI on EC2
[WHIRR-146] - Changing the mapred.child.java.opts value does not change the heap size from a default one.
[WHIRR-147] - Regression on launching clusters from EC2
[WHIRR-151] - Credentials not set correctly for Hadoop service configure step