Updated line no 1648 and 1651 to address JSON parser issue

Updated line no 1648 to declare properly. 
- Changed from public WorkflowActionReference actions; to public WorkflowActionReference[] actions; (array [] sign was missing). 
- This fixed JSON parser issue that I reported.

Updated line no 1651 to use proper variable name so that JSON parser is able to assign value to same.
- Changed from public String workflowTimeTrigger; to public String workflowTimeTriggerUnit;
- This fixed issue that workflowTimeTrigger variable was always coming null.