Parallel execution of workflow steps
Revert overriding changes unrelated to paralell ex
Revert step first workflow strategy changes
Merge branch 'issues/927-Parallel_Execution' of https://github.com/forcedotcom/rundeck into forcedotcom-issues/927-Parallel_Execution2

Conflicts:
	core/src/main/java/com/dtolabs/rundeck/core/execution/workflow/BaseWorkflowStrategy.java
	rundeckapp/grails-app/i18n/messages.properties
	rundeckapp/grails-app/views/execution/_execDetailsWorkflow.gsp
Fix java issues
Show parallel strategy option if feature enabled
should fail if the job is killed
Merge branch 'forcedotcom-issues/927-Parallel_Execution2' into development
Fix Script based file copier project config properties load #1018
scp should not delete source file after copy #1015
Only use config values for selected plugin for #1016
Add nodeFilter, nodeThreadcount, nodeKeepgoing to JobExec
Add tests for job XML output
parse nodeThreadcount if a string, don't include nodeKeepgoing if false
Job execution item supports nodefilter override
squash:Use boxed primitives to allow null
Remove unused code and files
change isNodeKeepgoing to getNodeKeepgoing
Override nodefilter for job references
Add paging support