added check for an even number of options to 'has'
-rw-r--r-- .gitignore
-rw-r--r-- .shipit
-rw-r--r-- Changes
-rw-r--r-- MANIFEST.SKIP
-rw-r--r-- Makefile.PL
-rw-r--r-- PLANS
-rw-r--r-- README
-rw-r--r-- TODO
drwxr-xr-x author
drwxr-xr-x benchmarks
-rw-r--r-- doap.rdf
drwxr-xr-x doc
drwxr-xr-x lib
drwxr-xr-x t
drwxr-xr-x xt