VIVO-581 Don’t check for “regular files”, just check for “not directory”.

webapp/src/edu/cornell/mannlib/vitro/webapp/freemarker/loader/FreemarkerTemplateLoader.java

@@ -285,7 +285,7 @@ public class FreemarkerTemplateLoader implements TemplateLoader {
 		}
 
 		public boolean fileQualifies(Path path) {
-			return Files.isRegularFile(path) && Files.isReadable(path);
+			return Files.isReadable(path) && !Files.isDirectory(path);
 		}
 
 		public SortedSet<PathPieces> getMatches() {