Add configurable processes plugin

We need to be able to get detailed statistics for processes and groups
of processes, so I have added a resource to configure the plugin.
Fix copy & paste error in README
Add test for plugin
Add an ensure parameter to remove conf file
Add spec test for processes plugin

I fixed a couple of things while building this:
  - processes.load was a copy paste hangover that I didn't like
  - Process in processes.conf.erb was indented with a tab = BAD
Merge pull request #53 from tombooth/add-processes-plugin

Add configurable processes plugin
Release 1.0.1

Summary:

This release introduces Archlinux osfamily support and support for
three new plugins ping, rrdcached, and processes.

Features:

 - Initial version of rrdcached plugin
 - Add configurable processes plugin
 - Add quotes for string values in network plugin
 - Add ping plugin
 - Add support for Archlinux
 - Allow to set all write_graphite options.

Bugs:

 - Fixed missing double quotes in unixsock plugin template
 - Added comma to syntax error in bind.pp
Merge pull request #55 from pdxcat/release-101

Release 1.0.1
fix whitespace
Merge pull request #56 from mmoll/whitefix

fix whitespace