Renamming client and receiver app directories.

I prefer to keep only the common libraries starting with m2mp. "client-m2mp" and "receiver-m2mp" are only M2MP protcol implementations of client and servers. There could be others.
Renaming m2log to m2mp-log

Because m2log didn't make any sense.
Adding debian package management.

Simple way to deploy apps.
Small .gitignore change.
Package: Only adds user and binaries at this stage.
Log: Few changes to prepare packaging.
Changing package version.
Updating NSQ client code.
Added NSQ startup handling with supervisor.