change (add) api for webjobs from `jobs` to `webjobs`.
change (add) api for processes from `api/diagnostics/process` to `api/process`.
tests now use new apis.
Fix issue where singleton continuous webjob gets into a state where it is not running on any instance.
fix #1180 use more accurate WEBSITE_SKU env
disable PortableCompilationOutput since it is not working on Azure
Make deleting Site Extensions more robust to locked directories and files.
Reenable PortableCompilationOutput since disabling it affects Monaco.
Adding Environment Variables view to Process API and UI, fixes #1177