Prepare properties for gradle-clickstack-plugin 1.0.3
Upgrade to clickstack-framework:1.0.5 (JCE Unlimited Strength support) and gradle-clickstack-plugin 1.0.3 (clickstack branching friendly)
Don't source file "$control_dir/env" as it may contain invalid environment variable names (e.g. "my.key=my.value") and because these environment variables are not used during the shell-start phase.