added activiti.osgi.dynamic property so that the engine can dynamically import java delegates from other bundles when running in an OSGi container

Changed behavior of HistoricProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds) and ProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds) when the provided set is empty to throw an exception

Changed behavior of HistoricProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds) and ProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds) when the provided Set is empty but not null and added tests for both cases

Added HistoricProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds) and improved test case for ProcessInstanceQuery.processInstanceIds(Set<String> processInstanceIds)

Added HistoricProcessInstanceQuery.processDefinitionKey(String processDefinitionKey) and documented HistoricProcessInstanceQuery.superProcessInstanceId(String superProcessInstanceId)

 - Fixed bug in ManagementService (manual create schema didn't work)
 - Added method in BPMNParseListener

Added classes (originally from cycle-core) for cdi testing infrastructure in src/test/java. Added generation of test jar in pom.

Added classes to run the Activiti Engine in Apache Karaf with support for script and delegate service tasks

ACT-918 activiti-cdi: revisit process variable handling and interceptor; removed CommandContextInterceptor, added DelegateInterceptor.

ACT-918 ACT-917 activiti-cdi: add execution-based associations, revisit process variable handling and interceptor

ACT-918 ACT-916 adding thread context, limiting bean store flush to @ThreadScoped associations and methods on the BusinessProcess bean, ending the current unit of work