version bump and build.py bump enhancement for x.y.z-r[a] nvr bumping
enable/disable cookie_secret in config; autogenerate new cookie each restart by default, if not defined in a config file (ie, testing/debug); enabled/disable xsrf_cookies in config too
refactored metrique-server/tornadod.http ... merged them and fixed enhanced start/stop/etc handling; updated metrique-server script too; made more stuff available in configs; fixed #70 (mongodb "w" write_concern stuff