Install knife ec2 gem.

This commit refs #128.
Install ec2-api-tools onto /home/kazu634/bin.

This commit refs #128.
Configure ec2-api-tools.

Configure /home/kazu634/.chef/knife.rb,
in order to use ec2-api-tools.

This commit refs #128.
Make directory for EC2 deploy template file and deploy it.

This commit refs #128.
Move the aws configuration file section from default.rb to ruby.rb.

This commit refs #128.
Deploy the AWS secret key to /home/.ssh.

This commit fixes #128.
Merge branch 'id/128' into dev