Prior to this commit the webhook init script was updated to not
support RHEL which is the main user case for this in PE. This
commit adds a conditional to write the init script dynamically

Prior to this commit we had the following issue with out init script

`/etc/init.d/webhook: line 14: [: !-d: unary operator expected`

Prior to this commit we had the following issue with out init script

`/etc/init.d/webhook: line 14: [: !-d: unary operator expected`

Prior to this commit this code was written as a local var
not an instance variable

Prior to this commit we would write undef symbols to the serialized
yaml file, this commit adds a test for that

```yaml
  public_key_path: !ruby/sym undef
   private_key_path: !ruby/sym undef
```

Support of Puppet FOSS for Webhook

Prior to this commit we documented an invalid param, this command
adds the include_postrun_command param on r10k to bring it line with
the public declaration. This also removes the 'invalid' spec test
as no one was in that state as they would not have been able to
compile a catalog so its not a breaking change. However for any
new users of the module I will likely require boolean in 3.0

Prior to this commit adrian was nice enough to fix a bug and
he decided that 1.5.0 should have never been release so he yanked
1.5.0 as it would not track branches. This caused people who use the
default in the latest module to fail

prior to this commit we moved the sinatra package
to a conditional that only applied to FOSS this broke some PE
installations

Prior to this commit we did not manage the directory contents recursively
. this commit adds the flag as it should not have an major performance issues
as we currently don't rotate the logs