Merge pull request #77 from cgay/update-logging

Update logging submodule and associated code changes.
fixed .dsp names
also, no need of working directory
Merge pull request #79 from rjmacready/fix-http-server-demo

fixed .dsp names
Actually, we really need to specify --working-directory, if we call the binary outside the working directory with /dsp
Merge pull request #80 from rjmacready/fix-http-server-demo

Actually, we really need to specify --working-directory, if we call the ...
[tests] Set server logging to -level in make-server
[server] Remove some left over debug logging.
[server] Log the request line at debug level
[server] Remove various debug logging and add logging for URL rewritten by rule