FIX: Memory leak in continuous scrolling w/ ea

Previously process_early_access() was being called each time new search
results were retrieved either for continuous scrolling or search
suggestions.  This function would then evaluate each item on the page to
see if an Early Access banner was needed.  Scrolling through several
pages would thus cause exponentially more memory to be consumed.  This
corrects this by only processing the individual items as they're added.