Merge pull request #12 from berndruecker/master

Thanks Bernd!
fix(jboss): fix handling of default process engine

- make sure default process engine must not be named default

related to #CAM-929
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
feat (engine): Added support for link events

closes #CAM-437
chore(engine): fix typo in classname & add license

- fix classname IntermediateCatchLinkEventActivit{i->y}Behaviour
- add license Header

related to #CAM-437
chore(qa): unify polling interval
chore(qa): add baseline for jobexecutor timeouts
docs(migration-scripts): clarify a comment of an upgrade step

related to CAM-897
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
fix(engine): serializable vars in shared engine

- use ReflectUtil for deserializing process variables
- allows to use serializable process variables in combination with shared
  process engine.

related to #CAM-907
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
feat(vars): Add variable instance query

- Add to the runtimeService the method 'createVariableInstanceQuery()' to
  create a variable instance query
- Implement the variable instance query
- Add testcases to test variable instance query

related to CAM-941
feat(rest): expose filtering by suspended tasks and executions

related to CAM-944
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
fix(qa): avoid deadlock in mssql

- do not use JOIN on JOB->EXECUTION table to avoid deadlocks in mssql
  testsuite in combination with asynchronous JobExecutor handling

related to CAM-935
Merge branch 'master' of github.com:camunda/camunda-bpm-platform
feat(vars): Add variable instance query

- Add to the runtimeService the method 'createVariableInstanceQuery()' to
  create a variable instance query
- Implement the variable instance query
- Add testcases to test variable instance query

related to CAM-941
Merge branch 'master' of github.com:camunda/camunda-bpm-platform

Conflicts:
	engine/src/main/java/org/camunda/bpm/engine/impl/VariableInstanceQueryImpl.java
	engine/src/main/java/org/camunda/bpm/engine/runtime/VariableInstanceQuery.java
	engine/src/test/java/org/camunda/bpm/engine/test/api/runtime/VariableInstanceQueryTest.java
fix(merge): fix merge conflicts
fix(mssql): Fix variable instance query for mssql

related to CAM-941