Third and final fix for Websphere

Basically Websphere has problems finding resource prefixes that do not end with a /

The version here is now working correctly when using forPackage and forResource.

It is also logging some warnings on websphere about its strange behaviour.
WAS is a paid product with support team
Did you contact them to ask for a fix ?

WAS is the worst Java EE server out there. No one wants such ugly code in his library/application because of some paid sh*t (excuse my French!)