runner: mini-library added to control supervisord processes
runner: runXXXWithLock calls supervisor instead of basic Popen
runner: slapproxy is managed by supervisord
runner: supervisord's library can now stop processes
runner: sup_process library upgraded (new functions, fixes)
runner: "run" and "proxy" functions adapted to supervisor
runner: tests adapted to the use of supervisord
slaprunner: views.py cleaned from old process.py functions