Changed port to int type (was string, which caused %d not to work in node.py.)
Changes to pass code check.
We should check NOXController and RemoteController to make sure thatthey are not broken, but I cannot do this at the moment.
Fix CLI breakage with new test interface
Fix NOX breakage
Controllers are no longer namespace-able, and all calls need one fewerarg.
Also use more sensible temporary variable name.
Rename cliinfo debug level to output
Add none test to measure MN creation/teardown time
Fix remote controller param
Add TreeTopo to cmd line
Make cleanup a param of mn, not a separate script
Also switch from print to info statements, to enable a non-verboseclean. Instead of 'mnclean', now run 'mn -c'.
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