make RaumZeitChef options available via Getopt
get rid of Sys::Syslog in favour of ::Log

this makes development a lot easier, since we just output
everything to stdout. Thanks to systemd, this ends up
correctly in our logs.
get rid of Method::Signatures::Simple to get correct line numbers
manually resolve hackint server to connect faster
move "event" sugar from ::Plugin to ::IRC::Event
Makefile.PL: update dependencies
kill all Method::Signatures::Simple cool aid