Fix for ACT-1570: NPE when attempting to add a user to a group through the activiti-explorer interface
FlowElementsContainer now a shared interface
Merge branch 'master' of https://github.com/Activiti/Activiti
First bits for ACT-1571: Auto layout for BPMN 2.0 processes
Merge branch 'master' of github.com:Activiti/Activiti
ACT-1571: Removed invalid import
ACT-1571: Fix failing QA
Added parallel Camel test
Upgraded Vaadin version
Merge branch 'master' of https://github.com/Activiti/Activiti
ACT-1571: Improvements to layout algorithm
Merge branch 'master' of github.com:Activiti/Activiti
Added reminder-comment
ACT-1571: Improvements to layout algorithm + added 'addBpmnModel' to DeploymentBuilder
Merge branch 'master' of github.com:Activiti/Activiti
Cleaning up after Frederik
ACT-1571: support for subprocesses
ACT-863: fixed NPE when getting JPA-entity out of HistoricVariableUpdate
ACT-1556: if deployment is not new, don't add start-authorizations
ACT-1561: Possibility to define single task-listener for all events