add BonitaExecutorService and logs
[ENGINE RELEASE] Created the release 6.3.1.dummy
[ENGINE RELEASE] Updating pom files for next snapshot 6.3.1-SNAPSHOT
[ENGINE RELEASE] Updating pom files for next snapshot 6.3.2-SNAPSHOT
BS-8718, fix work service start/stop/resume
Merge branch 'BS_8718_HA' into release-6.3.1
BS-8754 : [6.3] Uncertain state for a task of a sub-event process

- The connector is put in FAILED state, after throwing the error event.
- Refactor tests
- Add new test : processWithErrorEventSubProcAndCallActivity_must_be_finished_when_subProcess_is_finished
- Add more verifications on test : connectorThatThrowExceptionErrorEventPolicyCallActivityOnTask
BS-8674: when deleting a processInstance, also delete its archived elements
Merge branch '6.3.x' of github.com:bonitasoft/bonita-engine into 6.3.x
try to fix random test MemoryLockServiceTest#testRemoveLockFromMap
Merged modules:
bonita-category-api and bonita-category-model
bonita-category-api-impl and bonita-category-model-impl and bonita-category-model-impl-hibernate
Merged modules:
bonita-category-api and bonita-category-model
bonita-category-api-impl and bonita-category-model-impl and bonita-category-model-impl-hibernate
BS-8692: process instance deletion cascade deletion of archived elements of children elements too
Revert "BS-8754 : [6.3] Uncertain state for a task of a sub-event process"

This reverts commit 537ca1946cd43cbdd6d61c0fc3f977026ed4603b.
BS-8754 (restored) : [6.3] Uncertain state for a task of a sub-event process

- The connector is put in FAILED state, after throwing the error event.
- Refactor tests
- Add new test : processWithErrorEventSubProcAndCallActivity_must_be_finished_when_subProcess_is_finished
- Add more verifications on test : connectorThatThrowExceptionErrorEventPolicyCallActivityOnTask
Revert "BS-8692: process instance deletion cascade deletion of archived elements of children elements too"

This reverts commit b86f062f9088af8d4e71ba01f282f1770bd2e998.
Revert "BS-8674: when deleting a processInstance, also delete its archived elements"

This reverts commit 149444c0b4b561377be87767bbe27060826d435d.
BS-8754 : [6.3] Uncertain state for a task of a sub-event process

- Revert bad commit
Merge branch 'release-6.3.1' into '6.3.x'
update Hibernate to version 4.2.13.Final