add kill srs tool
gerge branch 'tbdev2' of https://github.com/jffifa/simple-rtmp-server into tbdev2
Merge branch 'tbdev2' of https://github.com/jffifa/simple-rtmp-server into tbdev2
Merge branch 'tbdev2' of https://github.com/jffifa/simple-rtmp-server into tbdev2
bug forward user_role error
add auto del log tools
Merge branch 'tbdev2' of https://github.com/jffifa/simple-rtmp-server into tbdev2

Conflicts:
	trunk/src/app/srs_app_tb_log.cpp