Fix some sonar issues
Fix sonar issues in bases/push/hub module
Fix sonar issues in PushSubHubHub modules
Set timeout to 20s in Jsonrpc importer

Pass the timeout from 10 s to 20s it to ensure the tests pass on the (slow) jenkins server.
Add protobuffer exporter test
Protobuffer exporter bug fix

Fix issue:
-non available info during processing declaration
-non shutting down endpoint in case of service stop
fix scope in dependency for jax-ws exporter
remove empty lines