Merge pull request #150 from NiteshKant/master

Enabling registration for non-amazon datacenters on server startup.
- change periodic info logs to debug logs in DiscoveryClient
- remove clientId logging in discovery server
Merge pull request #151 from qiangdavidliu/minorfixes

Minor fixes
[Gradle Release Plugin] - pre tag commit:  '1.1.137'.
[Gradle Release Plugin] - new version commit:  '1.1.138-SNAPSHOT'.
Check if the elastic ip is for VPC and behave appropriately
Use domain of elastic IP to determine vpc or ec2-classic
Merge pull request #153 from ericdowd/vpc-eip

Fix for Issue #152
Merge pull request #158 from NiteshKant/master

Fixes #157
[Gradle Release Plugin] - pre tag commit:  '1.1.138'.
[Gradle Release Plugin] - new version commit:  '1.1.139-SNAPSHOT'.
Fix logging string
Merge pull request #172 from jeffw-wherethebitsroam/master

Fix logging string
Fixes #174

-- Making BackupRegistry injectable.
-- Fixed an annoying issue in EIPManager:  When no EIPs are free, it was throwing an NPE.