fix permission problems for logfile on debian

The debian init script starts nodejs/statsd as user 'nobody' but it
wasn't able to write to it's own logfile anymore. This is now fixed.
Merge pull request #8 from Savar/fix_logfile_ownership

fix permission problems for logfile on debian
Add /usr/local/{sbin,bin} to init script PATH

so that it can work with a nodejs installed into /usr/local
Use instance-variable syntax in templates

to avoid deprecation warnings in puppet 3.2
Moved parameters into params.pp
Merge pull request #11 from rwstauner/template-vars

Use instance-variable syntax in templates
Merge pull request #12 from doismellburning/params

Moved parameters into params.pp
Merge pull request #10 from rwstauner/local-path

Add /usr/local/{sbin,bin} to init script PATH