Simple client site caching
Mocked order service failure
Forced exception at service configured by propertas
Simple retry policy
Added transaction service
Many implementation of the same service
Order, User and Transaction services
Removed enable - added auto enable
Merge remote-tracking branch 'origin/master'
fixed
Heart Beat - server site
Merge remote-tracking branch 'origin/master'

Conflicts:
	discovery-client/src/main/java/com/payu/discovery/client/ServiceDiscoveryClientConfig.java