Bug #270 asks for a lazycelery.sh script much like lazyserver.sh. Rather
than duplicate the code, I consolidated them into a single script,
lazystarter.sh. The script reconfigures itself a bit, and runs a
particular server, based on the name that's used to call it, but no matter
what it uses the same code to offer help and find configuration files and
server launchers. Hopefully this will make it easy to add other
features/fix bugs as needed in the future, and have them stay in sync.
If users have a paste_local.ini, use that one instead of
the shipped paste.ini.
That way local changes will not interfere with the main
shipped config.
Also improve the help string (./lazyserver.sh -h) a bit.
