FIX: Httpd::Module::Helpers::ModuleDetails Specs

Instead of extending the Httpd::Module::Helpers::ModuleDetails which added the DSL methods to the spec context object (whatever that is at the moment of the execution of the specs), I instead use the ModuleDetails object that was defined. Adding these methods to a new object, in this case the spec context object, does not carry over any of the data defined/stored on Httpd::Module::Helpers::ModuleDetails.

I used a rspec let helper to define a subject and set that to the name of the module we care about testing for the information and then updated all the specs to call the `find_deletes` on that class.

Lastly, there was one small typo where you were looking for **module** but all the entries were using **package**.