Parallel execution of workflow steps
Revert overriding changes unrelated to paralell ex
Revert step first workflow strategy changes
Update version to 2.3.1-1-GA
Add release notes for 2.3.1
Update version to 2.3.2-0-SNAPSHOT
Script content should be expanded and line endings converted

prior to invoking file copier
TODO: make token expansion optional for local file sources
File copiers do not alter source file contents
Add node property expansion test
Add test for token expansion in script string/streams
fix gitignore
Tests for LocalFileCopier
Fix behavior of file copy for #1001
Make keypair and security group configurable via ENV vars
echo output
Prevent NPE
Core logic refactored into method for reuse
ScriptURL reuses logic from ScriptFileNodeStep

* update tests to expect remote file remove command
Add ability to use_iam_profile