Add zProperties to control resetting of the guest devices collector.  zAWSGuestCollector is set from the AWS Device and allows the user to globally set the collectors for that AWS device.  zAWSResetGuestCollector is set on a guest device and if set to false will not allow the aws instance to change the collector.  Fixes ZEN-11913
Merge pull request #26 from zenoss/feature/ZEN-11913

Add zProperties to control resetting of the guest devices collector.  zA... A-OK