v0.3.0

Should works better, and quicker. Fully Tested with unittests.

• the manager is now an async task (no more a process)
• Process is now by user (was by htag before)
• Process use Pipes (in place of queue before)
• graceful shutdown
• uvloop compatible !
• works on win+nux, at least
• seskeeper is gone (session/process die on a inactivity timeout)

Full Changelog: v0.1.0...v0.3.0