Implement `slc debug` as node-inspector/node-debug

Run sub-command now simply calls the node-debug command from
strong-supervisor.
Remove create sub-command

See SLN-701
Replace help and version commands with options

`slc help` no longer worked, usage information for external commands is
available from providing the -h/--help option to them (`slc run -h`).

To ensure that all commands have usage, that is consistently accessible,
help now works like:

- slc --help: help for slc
- slc --version: version for slc and node
- slc CMD --help: help for CMD (lb and env now support this)

And -h is same as --help
Fix javascript style with fixjsstyle