Updated swarming parameters

Updated swarming parameters. Default spatial pooler is the new one. Updated parameters for anomaly detection by removing special cases, and fixed bug where legacy metrics (now removed from CLAModel) were being used. Removed some confusing comments.
Merge branch 'master' of github.com:numenta/nupic into update_swarm_anomaly_models
ExpGenerator fixes

Removed some of the legacy metrics code in ExpGenerator. Fixed ExpGenerator tests to use new metrics instead of legacy metrics. Removed useless command line parsing that was interacting with run_tests.
Merge pull request #729 from subutai/update_swarm_anomaly_models

Updated swarming parameters