Made TermNode and BooleanNode be subclasses of Node.
-rw-r--r-- 25 .cvsignore
-rw-r--r-- 710 Changes
-rw-r--r-- 121 MANIFEST
-rw-r--r-- 19 MANIFEST.SKIP
-rw-r--r-- 507 Makefile.PL
-rw-r--r-- 852 README
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drwxr-xr-x - releases
drwxr-xr-x - t