attaching EBS mounts when running in AWS
Merge remote-tracking branch 'org/testing' into use-persistent-disks-in-aws
moved persistent disk to /dev/sdc since ephemeral mounts to /dev/sdb, and added more logging and exception handling when mounting EBS volumes
added better logging on iaas manager calls
having iaas manager wait for volumes to attach before returning, and having appcontroller wait for device to exist before trying to mount it
using zone from AppController in IaasManager to spawn VMs in same zone
for GCE, using zone from AppController in IaasManager to spawn VMs in same zone
made some logging more readable
passing zone name from AppController to IaasManager
merged with specify-zone-as-flag
Merge pull request #654 from shatterednirvana/specify-zone-as-flag

Specify availability zone as a flag
Merge remote-tracking branch 'org/testing' into use-persistent-disks-in-aws
Merge pull request #658 from shatterednirvana/use-persistent-disks-in-aws

Use EBS volumes in AWS to persist data