code formatting, no logic changes

hard time following logic with inconsistant spacing, tabs, newlines, etc
add ebs optimized and private ip address to launch instance

and ebs optimized to 'toVirtualMachine'
Ref #842
fix issue with setting ioOptimized value in 'toVirtualMachine'

ref #846
Merge pull request #26 from TheWeatherCompany/twc_dev_ebs_optimized_vms

Twc dev ebs optimized vms