http download of jar should require $jardir
Merge pull request #90 from maxamg/master

http download of jar should require $jardir
add tests for config file
Update files for release
Manage the configdir just in case
Add the ability to specify a local jar file for the logstash binary to install (ex: file:/my/local/path/to/logstash.jar)
Adding a test and some doc
Merge pull request #99 from exo-puppet/feature/local-file-install

Add the ability to specify a local jar file for logstash package to install
Honour the NICE setting

Either set in /etc/init.d/logstash-agent, or in
/etc/default/logstash-agent.

See http://man.he.net/man8/start-stop-daemon
Merge pull request #104 from alphagov/master

Honour the NICE setting