fix act-1839
Changes for Maven central repo
Merge branch 'master' of https://github.com/Activiti/Activiti
Optimize CdiTaskListener to get ProcessDefinition from cache and not
execute an additional command.
[ACT-1848] Handle MultiInstanceActivityBehaviors
[ACT-1339] Calling ActivityEndListeners within an AtomicOperation.
Model changes for clone
Converter fix
Prepare for maven central upload
changed repository
[ACT-1859] TaskListeners configured for ALL event types do not receive DELETE events
Rest tests improvement
Extract interface for HistoryManager
Merge branch 'master' of https://github.com/Activiti/Activiti
ACT-1860: Remove unique constraint on business key
Initial implementation of engine event mechanism (subject to change)
ACT-1752

In BpmnDeployer, only schedule start timers AFTER process definition has
been persisted
Merge pull request #179 from martin-grofcik/ACT-1752-2

ACT-1752
[FIX] ACT-1816: ManagementService doesn't seem to give actual table Name for EventSubscriptionEntity.class
[FIX] ACT-1863: NPE on HistoricVariableInstanceQuery