INFRA-736 Add PM72 Scripting API to docs site

Can you please repush these sections? I reworked the Scripting API
sections to include links to both PM70/PM71 and PM72 versions.
Thanks,
Deborah
docs-test\ag\processes
getting_started_with_processes.htm
process_reference.htm
docs-test\ag\scripts
script_management.htm
getting_started_with_scripts.htm