Updates on PrivateEc2 Driver

* Fix the S3 expiration.
* Change zip archive to tar.gz
* Use bootstrap-management.sh script 
* Upload cloudFolder to S3 for non-management instances.
* Delete uploaded files in S3 once the agent is running.

Note that I had to fix CLI/src/main/java/org/cloudifysource/shell/commands/InstallApplication.java to be able to upload cloudConfiguration files when using directory in cli parameter.