* c++ RateKeeper * add to files_common * use util::random_int * improve monotor_time * remove ~ratekeeper old-commit-hash: 3eef63af9b4f4a25bc4c3a0d6ad450bba9f62205
* Create system/ for generic services * logcatd joins the party * fix those up old-commit-hash: afd16b2ade7723d87a15fa6c5f5de59734897f51