ec2.sh: vars and args check
ec2.sh: Check if args are valid
ec2.sh: added spawn node awscli command
ec2.sh: added logging
ec2.sh: minor logging change
ec2.sh: adding checks
ec2.sh: Assign tags and get IPs
ec2.sh: ssh conn test and node info
ec2.sh: Added node configuration
Merge pull request #1 from ginobi/develop

Develop