Update spec_helper for consistency
Merge pull request #211 from mhaskel/spec_updates

Update spec_helper for consistency
Remove documentation for deprecated $warn_message parameter

Commit 8a500af removed $warn_message.  Also remove it from the documentation
Merge pull request #212 from mattaezell/doc-remove-warn_message-param

Remove documentation for reverted $warn_message parameter
Remove dependency on stdlib4
Merge pull request #213 from mhaskel/stdlib4

Remove dependency on stdlib4
Update README.md

Unless I misread the [code] (https://github.com/puppetlabs/puppetlabs-concat/blob/master/manifests/fragment.pp#L61-L63), only 'present' or 'absent' should be used. All other options are deprecated ?
Merge pull request #214 from PierreR/patch-1

Update README.md
Lack of idempotency with `ensure => 'absent'`

Need to add an unless to the exec in the case we have `ensure =>
'absent'` for the concat, otherwise the exec (of true) runs every time.
Merge pull request #215 from mhaskel/idempotency

Lack of idempotency with `ensure => 'absent'`