Merge pull request #191 from tbak/2.x

Channel/transport update - WIP.
A few improvements to Eureka CLI, to speed up manual testing process.
Standardize InstanceInfoField names
Merge pull request #192 from qiangdavidliu/2.x

Standardize InstanceInfoField names
Test framework updates:
- added interest command to CLI tool
- added testEurekaServer with pre-registered apps
- minor package refactoring
Merge pull request #193 from qiangdavidliu/2.x

Test framework updates
Implement interest channel upgrade.
Merge remote-tracking branch 'remotes/netflix/2.x' into tbak/2.x

Conflicts:
	eureka-test-utils/src/main/java/com/netflix/eureka/cmd/EurekaCLI.java