Buttons now run release control scripts
No more git key
 change subprocess call to Popen
Added required service status
Typo
rm old spark_ec2
Adding elastic ip to be inputted when start a new cluster
abc
Store associated IP to cluster_name to file and retrieve if necessary
remove elastic_ip in new cluster
fix minor bugs
back to the prev
open to file for updating, create if does not exist. Remove self argument in get_elastic_ip
fix remove elastic ip
Fix the remove ip
Change time sleep after change cluster state to 5 to correctly indicate the state
enable shell=True
abc
fix typo
pi fixed