mysql-test/r/show_check.result:
Update to results
mysql-test/t/show_check.test:
Added SHOW AUTHORS test
sql/field.h:
Fixed portability issue
sql/lex.h:
Added new keyword "AUTHORS"
sql/mysql_priv.h:
Added reference to new show command.
sql/sql_cache.h:
Fixed compile bug (more of these need to be fixed)
sql/sql_lex.h:
Added to com bit.
sql/sql_parse.cc:
Parsing for show authors
sql/sql_show.cc:
Added new show command for "SHOW AUTHORS"
sql/sql_yacc.yy:
Added new parse code for show authors.
