Don't stop the filesearch if the first try fails.

It was a wrong (and maybe stupid) assumption, that the config dir
(~/.yq2) is always the first element of the search path. When there's
at least one pak file in the config dir, it's added at a random
location. Work around this by probing all directories. This fixes
issue #107.

src/common/filesystem.c

@@ -442,7 +442,7 @@ FS_FOpenFile(const char *name, fileHandle_t *f, qboolean gamedir_only)
 		{
 			if (strstr(search->path, FS_Gamedir()) == NULL)
 			{
-				break;
+				continue;
 			}
 		}