Adding cost-related stuff
use ssh user in order to connect to shell. ssh user is stored on ssh key, per machine
add spinner on associate key
add spinner to key disassociation
fix bug in disassociate key and improve spinners on key associate
Let user upload public and private key when creating a new key
ability to associate a user name with a machine/key
fix classes on machine keys section enabling the correct association for keys with spaces
force name, pub and priv keys to be required in keys creation
remove libvirt code, push to new branch
display associated machines in single key view that are not currently available
Display bytes/sec instead of operations/sec for disks.
Clarify stat labels (add units, remove interface/disk names).
Update uploading key
Add partial key validations.
Fix labels in rules to be consistent with stat labels.
Perform client side key validation when user clicks "Add" button
Fix indentation
Fix network/disk rules.

specify network send (as network-tx) and disk-write.
modify relevant thresholds (added the unit too).
merge upload_key pull request
add pricing on the create machine wizzard, plus 2 scripts to get pricing from ec2/rackspace

show pricing per image/size combination, since ec2/rackspace charge differently for different
image for the same size. Check PRICING_ISSUES for more info and to get the pricing