[Catalyst] Patch for Catalyst::Utils::ensure_class_loaded()

[Matt S Trout]

Rodney Broom wrote:
> This is a fix to Catalyst::Utils::ensure_class_loaded() and the call to it that was causing classes to always get reloaded.
> 
> I have no specific test cases. My testing was to add debugging while tracking other problems and see that load was always happening, even when Class::Inspector->loaded($class) reported true.

You'll need to figure out how to test this or we can't apply it.

The current intended logic is to load anything we find *on disk* from the 
Module::Pluggable run, but not to accidentally try and load anything we 
didn't. There are a bunch of tests for component loading already; shouldn't be 
too hard to add an additional case or two to that.