add init script for redhat
use scope.lookupvar to lookup variables from main tasseo class
Minor updates for style
Add tasseo::params
Move config file to tasseo::config
Allow specification of service provider in tasseo::params
Service requirements from tasseo::config and specification in tasseo::params
Move init script definition to distro specific manifest

This is to allow for different behaviour of upstart and init.d service
providers
/etc/sysconfig/tasseo file for redhat