ENHANCEMENT: upgrade slf4j from 1.7.5 to 1.7.7.
ENHANCEMENT: upgrade saxon from 9.5.1-4 to 9.5.1-5.
CONFIG: log4j samples are now displaying AWS and LibVirt message in the console too.
BUG: in AWS. AWS Regions return different error messages...
TYPO: in 'com/wat/cloud/aws/ec2/messages.properties'.
ENHANCEMENT: introduce a retry mechanism when deleteing the self protected area.
ENHANCEMENT: upgrade amazonaws sdk from 1.7.1 to 1.7.9.
ENHANCEMENT: upgrade jna from 3.5.0 to 4.1.0.