CDAP-412 REST endpoint to expose Service methods
Addressing comments
Allow old spec. Support only class level annotations
Rename handler and endpoint classes
Remove ServiceWorkerSpecificationCodec
Fix checkstyle
Better endpoint path creation
Fix formatting
CDAP-479 Remove gateway init scripts
Merge pull request #558 from caskdata/feature/CDAP-479-GatewayInitScripts

CDAP-479 Remove gateway init scripts
Merge branch 'develop' of github.com:caskdata/cdap into feature/CDAP-412-ListServiceEndpoints
Merge pull request #545 from caskdata/feature/CDAP-412-ListServiceEndpoints

CDAP-412 REST endpoint to expose Service methods
Merge develop