Add BUGS and TODO notes.

BUGS

@@ -1,3 +1,6 @@
 * This script is known to fail on the following:
 
     - Cache::Cache 1.02 (Tries to do detection magic in Makefile.PL.)
+
+* PAR 0.92 is arch-specific because of stuff in %{_bindir}, not
+  %{perl_vendorarch}.  There's probably a way to detect that.

TODO

@@ -20,3 +20,5 @@
 
   - I'm not sure this is necessary now that we pull the information
     from the module itself.
+
+* Do a better job of detecting scripts in the package.