JFG-589 add if
JFG-589 - log fix
Merge pull request #392 from marknovozhilov/JFG-589

JFG-589 add if
Fix exception in ExchangeClient
Remove propagate exception
Remove IO catch block in exchangeClient
Merge pull request #394 from kgribov/AgentError

Fix catch block in ExchangeClient
[maven-release-plugin] prepare release parent-1.2.4-m2
[maven-release-plugin] prepare for next development iteration
+ bug fix . Web Ui / TagEntity Persistance
Merge pull request #395 from amikryukov/gdmaster

+ bug fix . Web Ui / TagEntity Persistance
Merge branch 'master' of https://github.com/griddynamics/jagger into ListenersInvoke
Call validator before invocationListeners