Merge branch 'release/1.3.2' into develop

* release/1.3.2:
  Update changelog
  Bump version to 1.3.2
Print decent error information when an exception happens
Don't fall over if snapshot doesn't have description
Print AggregateExceptions better, and bork if can't find user ID
List M3 instances
Fix source snapshot-deletion logic
Correct validation for amazon user Ids
Take command cancelling off the main thread
Start of work to migrate to Stylet
More work
Minor fixes
More fixes for Stylet
More stylet work
Merge branch 'feature/stylet' into develop

* feature/stylet:
  More stylet work
  More fixes for Stylet
  Minor fixes
  More work
  Start of work to migrate to Stylet
Fix system for fetching ARN
Add ~/aws-config file, while contains all the details needed to use the aws command-line tools
Add PUBLIC_IP to aws-config
Update README
Bump version to 1.3.3
Update changelog