* libguile/symbols.c (scm_symbol_to_string, scm_string_to_symbol):
Remove some confusing documentation that assumes that Guile is
case-insensitive, and which uses a word that may be perceived as a slur.
* module/ice-9/test.scm:
* test-suite/tests/r4rs.test: Rename a test to avoid using a slur.
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.