Fix cache_dir, use the default from App::Cache (which is /.backpan_index/cache)
-rw-r--r-- Changes
-rw-r--r-- MANIFEST
-rw-r--r-- Makefile.PL
-rw-r--r-- README
drwxr-xr-x lib
drwxr-xr-x log
drwxr-xr-x root
drwxr-xr-x script
drwxr-xr-x t