don't make sysv init scripts dependant on distribution specifics

don't make sysv init scripts dependant on distribution specifics

- /etc(/rc.d)?/init.d/functions does not exist on all distributions
- LSB does not define a message function without an explicit status
- Debian-derived systems add a log_daemon_msg for that

lets define an own log_daemon_msg as echo and try to load LSB init
functions afterwards, which might overload it with a nicer version

that way the init scripts should work on any system, without hard
dependencies on neither LSB nor /etc/init.d/functions

Closes #309 #310 #311

Signed-off-by: Evgeni Golov <evgeni@debian.org>