Several small changes

- Tidied up the bit that reads command line params.
- Now reads a list of files after -f, not just one.  Only last file is processed so far, I'll fix this next.
- Change to midasinterface makefile to remove unnecarsary -lNet flag which causes compilation to fail on Ubuntu.
- Horrible trouble merging this, hope it works now.  
- checked compilation and test suite.