Add explicit Debian requirements to readme
Change license on erlang files to MIT

The point has been raised that having the Erlang files under the GPL can
introduce restrictions in the use of erld that we hadn't intended. I've
chnaged them to (basically completely unrestricted) MIT license. The C
code, since it is not linked, remains as GPL.
Correct comment character (hat tip: Adam Lindberg).
Output warning on new line
Remove pidfile after successful shutdown
Detect already stopped service
Clean up stop rpc return switch
Clean up old remains from init script
Handle 'ok' returned from init:stop()
Merge pull request #15 from eproxus/init-cleanup

Init script cleanup
Merge pull request #16 from eproxus/fix-shutdown

Fix shutdown
Fix handling of return code from shutdown
Add some entries to .gitignore