Hazelcast checkpoint service +some code clean up
code cleanup
Code cleanup after merge
Refactoring HzTaskDao.java
Merge remote-tracking branch 'origin/develop' into develop
fixed bug with checkpoint deletion
Merge remote-tracking branch 'origin/develop' into develop
wf-test module and code cleanup
Refactoring HzProcessBackend.java
Fix GeneralTaskBackend.java
Fix HzProcessBackend.java and HzTaskDao.java
Refactoring CheckpointQuery.java
Code cleanup and optimize imports.
не пишите отладку в System.err !
code cleanup
TaskServer configuration become more flexible
TaskServer configuration become more flexible
Some hazelcast configuration updates/experiments
parent pom.xml updates for maven release
Merge branches 'develop' and 'research/hazel_mongo' of https://github.com/taskurotta/taskurotta into research/hazel_mongo

Conflicts:
	wf-backend-hz/src/main/java/ru/taskurotta/backend/hz/server/HzTaskServer.java
	wf-backend-hz/src/main/java/ru/taskurotta/backend/hz/server/HzTaskServerV2.java
	wf-backend-hz/src/main/java/ru/taskurotta/backend/hz/storage/HzProcessBackend.java
	wf-backend-hz/src/main/java/ru/taskurotta/backend/hz/storage/HzTaskDao.java
	wf-dropwizard-assemble/wf-dropwizard-hz-poc/pom.xml
	wf-dropwizard-assemble/wf-dropwizard-hz-poc/run1.bat
	wf-dropwizard-assemble/wf-dropwizard-hz-poc/src/main/java/ru/taskurotta/dropwizard/hz/HzTaskServer.java
	wf-dropwizard-assemble/wf-dropwizard-hz-poc/src/main/resources/context/context.xml
	wf-example/src/main/resources/ru/taskurotta/example/calculate/wf-config-jersey.yml