Fixed incorrect JSON output of catalog server.
Merge branch 'master' of github.com:cooperative-computing-lab/cctools

* 'master' of github.com:cooperative-computing-lab/cctools:
  Remove references to "auto" and "classic" mode, replace -m foreman with --foreman, have --cores default to 1.
  stupid mistake with arithmetic
  fixed problem with bandwidth limit and unsigned integer math
  Converted bandwidth limit mechanism from seconds to microseconds