* module/ice-9/ls.scm (local-definitions-in, definitions-in): Use nested
module procedures, as appropriate.
(recursive-local-define): Fix attempt to treat null as false. Whoops..
Moved ice-9/ and oop/ under module/, with the idea being that we have
only scheme under module/. Adjusted configure.in and Makefile.am
appropriately. Put oop/ at the end of the compilation order.