ncm-cdispd code cleanup

Work in progress related to #8...

Discussion on cleanup goals is better placed in #8.
I still don't agree that we should do nothing. We have to be a good citizen as much as possible. For me this means that we need at least to behave properly with default configuration...

On the other hand your point on sleep when not in debug mode is a valid one. But we typically speak about a few seconds more for ncm-cdispd, is it that much important. I can also (will!) test if --debug has been specified.