Fix fr_print_string_len, too
Clarify fr_print_string
Call fr_print_string instead of doing things ourselves
Use the new escaping for the tests
Make tmpl_alloc be binary safe
%n is allowed, too
Fix PREREQS so that the cache module builds
Number failure cases
More escaping / unescaping fixes.

The template names are now binary-safe if cf_new_escape

The various parsing functions take a quotation character, so that
they can do the correct de-escaping.

The tests have been audited and updated.