Install fakeroot

#rabbithole

- Install the fakeroot package
- That doesn't exist on RHEL 5
- Try to add yum-epel
- That makes a circular dependency loop in _common
- Refactor recipes ot always depend on _common
- Tests still fail on FreeBSD because of a Chef bug

/cc @opscode-cookbooks/release-engineers 
That looks like this:

```ruby
if rhel? && node['platform_version'].to_i == 5
```

which I found to be ugly. Especially since including the epel repos on 6 shouldn't hurt anything. What do you think?