WIP: configuring travis-ci tests

Move os_family and os mapping to yaml files

- Add Gentoo support
- Add FreeBSD support

Adding possibility to submit raw content to configure a job

adding Inspec tests ran with Kitchen and Vagrant on Debian Stretch

Added salt message in the top of the job template

Fixed jobs indentation

Compress rotated files by default on Debian

Allow managing logrotate defaults

Just for cosmetics

Following the template-formula example.

add Scientific Linux support

No need to reload the service on configuration change

Updates logrotate.conf for Debian

/var/log group in Ubuntu is syslog. This formula breaks
Ubuntu logrotate.

path (if mapping) need to be list now

Support multiple log path

Added a muktipath example on pillar.example file

Added a multipath example on pillar.example file

Fix job defaults

The iteritems dictionary method has been removed in Python 3 and using
items() is typically no problem in our case due to the fact that
dictionaries are rather small.

This fixes #15

This allows users to target this states to minions for which no pillar
has been defined (yet).

add logrotate.conf for suse

fixes issue #5

splits config file name and log file path, so you configure both.
This fixes #5.

Change the default service name to 'crond' for RHEL based systems.