Allow user-defined service restart parameter.

This allows, for example, use of /etc/init.d/haproxy reload to restart
haproxy when config changes, which:

- includes syntax checks
- restarts without interruption to service
Add missing LICENSE file
Correct readme port
Pin Rake to ~> 10.1.0 to support Ruby 1.8.7

The latest Rake update requires Ruby >= 1.9. This update
fixes the failing 1.8.7 tests by pinning Rake to the last
supported version on ruby 1.8.7.
Add Travis build status to README
Merge pull request #77 from blkperl/fix_travis

Pin Rake to ~> 10.1 to support Ruby 1.8.7
Merge pull request #78 from blkperl/add_travis_image

Add Travis build status to README
Remove redundant params section

The parameters for 'Redhat', 'Debian' and 'Archilinux were identical
and have been merged.
Merge pull request #57 from songkick/restart-command

Allow user-defined service restart parameter.
Merge pull request #66 from toabctl/add-missing-license

Add missing LICENSE file
Merge pull request #79 from kurthuwig/remove-redundant-parameters

Remove redundant params section