Log Message:
-----------
Add some rudimentary tracing code to the default text search parser, to help
in debugging its state-machine rules. Const-ify all the constant tables.
Minor other code cleanup, including using "token" rather than "lexeme" to
describe the output strings.
Modified Files:
--------------
pgsql/src/backend/tsearch:
wparser_def.c (r1.5 -> r1.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tsearch/wparser_def.c?r1=1.5&r2=1.6)