Minor change to a comment and whitespace.
Merge branch 'master' of /home/sandboxes/jmasters/display_development/../display_PRODUCTION/vegasrtdd-server
Changed the level of a couple log messages.

This should make the default info about new interfaces more
informative.
Get hostname from script, port and verbosity from command line.

The display_server.py command now takes two parameters:
./display_server.py <port> -v <verbosity>

The port number is required.  The hostname is determined from the
script itself.  The verbosity defaults to "info" if not supplied.

Also, I made some of the data structures sent to the client easier
to parse with JSON.
Sampling spectra instead of averaging before sending to client.

I take every Nth channel up to NCHANS (i.e. 512) to keep some
of the noise features in the data.
Make machine and port text invisible on page.  Add error catch to JS.