change usage reporting URL to theseus-usage.alltom.com
the Node.js Agent emits 'connect' and 'disconnect' agents like the Chrome agent
record Chrome and Node.js connection events instead of events for every file that comes and goes
don't record events when changing files
tweak an example
enable anonymous usage reporting
bump version to 0.2.8
Merge branch 'master' of https://github.com/adobe-research/theseus