Added functionality to check the current spot price of the instance type selected.
Added a field to the node configure page that shows the total uptime of the instance.
Merge pull request #48 from rsennewald/jenkins-15081

Fix to allow multiple EC2Clouds (fix for JENKINS-15081)
Merge branch 'master' of https://github.com/jenkinsci/ec2-plugin into ec2-spot-check-current-price
Merge pull request #49 from bwall/ec2-spot-check-current-price

Added functionality to check the current spot price of the instance type selected.
Removed unused (and dangerous method) that gets the first EC2Cloud
Source formatting/warnings clean up
Externalized some strings (more to go)
Remove println
JENKINS-18081 Errors with Multiple Clouds - Fixed the remaining problems
with the previous work on this. Clarified that clouds are uniquely
identified by the region.
Merge pull request #50 from bwall/ec2-uptime

Added a field to the node configure page that shows the total uptime of the instance.
implemented bid types for spot instances.
Merge pull request #51 from bwall/ec2-spot-bidtype

Implemented bid types for spot instances.