Add test for modify-in-place usage of ->map, as well as an example in the pod docs.
-rw-r--r-- Changes
-rw-r--r-- MANIFEST
-rw-r--r-- MANIFEST.SKIP
-rw-r--r-- Makefile.PL
-rw-r--r-- README
-rw-r--r-- TODO
drwxr-xr-x examples
drwxr-xr-x lib
drwxr-xr-x t
drwxr-xr-x xt