Update: Controller and control.

Update: Controller and control.

Fix bug in control where parameter should be "settings" and not "socket".

The controller can now detect the current path and provide a canonical relative path only for paths whose actual canonical path is within the current working directory that the controller program started in.

Fix printing of the help in the controller program (missing slashes).

Don't create socket and pid files when running validate and simulate.
When running simulate, still create the pid and socket files as appropriate.
Add new entry setting to allow explicitly setting the pid file path.

Remove no longer necessary functions that ensure terminating NULL.
The recent changes in the string functions now guarantee this.

Remove a lot of todo comments.
I will either get to them or not.

I plan on getting to writing IKI support.
It needs to happen and I can use the Fake program as an example.