Merge branch 'master' of https://github.com/Activiti/Activiti
fix act-1082
add test case for act-1082
ACT-1663: FormKey in StartEvent
ACT-1663: Test FIX
ACT-1722: Attribute isExecutable in ActivitiModeler.
fix act-1695
update testcase to check the ID of variable is fixed after chaning its type
Adding missing parameter to include process-variables in REST
Fixed wrong parameter name
Fixed ACT-1731: eager init of binary variables when included in query
Added possibility to register custom XMLConverters (changed visibility)
Merge branch 'master' of https://github.com/discolo/Activiti
added copyBodyToCamelBodyAsString and copyVariablesFromHeader endpoint properties and modified camel body transition for Activiti Camel Producer
Fixed ACT-1686: Using exists instead of inner-join (which is way faster
than a distinct on the whole RES.* result set)
Fixed ACT-1594: removing obsolete documentation
Added test for ACT-815 (not a bug)
Revert "Added test for ACT-815 (not a bug)" -> test not useful

This reverts commit 6db0b491ee4e94b33e72154c067969b635ae7f59.
Fixed ACT-1529: making webapps distributable
ACT-1609: Fixed issue in DB2 systems with "process instance overview"