fixed API usage (includes PR#54, PR#71, PR#74)

[adn77]

Sorry I didn't create a separate branch for my changes :( This is only a diff from my running production code, hence PR#54, PR#71, PR#74 are included.

I mostly fixed the rule handling to use API calls.

There're some additional notes in the config dialog about IDO_DB failing and trapd not listening on port 162 when trapdirector is run in a different Docker container.