Integrated RMI server/client into MM / M interaction

Conflicts:
	src/main/java/edu/mines/acmX/exhibit/module_management/module_executors/ModuleExecutor.java
Working RMI interprocess communication

A couple major things:

Restructured the contract between module manager and modules.  Now, everything
is done through an interface (the way it should have been done for a long time)

Working redirection of a modules stdout

Working recovery of exceptions ( closes #4 ).

Remaining:

I doubt the hardware manager works. This would be the one thing holding back #22