insert WorkflowInstanceAction for each recovered WorkflowInstance
move datasource from constructor to setter
set current workflow instance state to workflow instance action on recovery
Merge branch 'master' into recovery-action

Conflicts:
	nflow-engine/src/main/java/com/nitorcreations/nflow/engine/internal/dao/WorkflowInstanceDao.java
use configured value for awaitTermination
wip: adding tests
fix test
cleanup
fix see tag in javadoc
Merge pull request #45 from NitorCreations/recovery-action

insert WorkflowInstanceAction for each recovered WorkflowInstance
Merge pull request #47 from NitorCreations/configurable-await-termination

use configured value for awaitTermination
Expose stateVariables in REST API.
Store requestData from REST API under key "requestData" in state variables.

Previously requestData was stored under key "req".
Improve api docs.
Merge branch 'rest-state-vars' of github.com:NitorCreations/nflow into rest-state-vars
Add updated state variables to actions.