Fixed problem with mysql prompt when server disconnect. (Bug 356)

Fixed problem with localtime -> gmt where some times resulted in
different (but correct) timestamps. Now MySQL should use the smallest
possible timestamp value in this case.  (Bug 316)


client/mysql.cc:
  Fixed problem with prompt when server disconnect. (Bug 356)
client/mysqltest.c:
  More debug information
mysql-test/mysql-test-run.sh:
  Added support for --timezone in -master.opt
mysql-test/t/raid.test:
  Fixed test if raid is enabled
sql/field.cc:
  New my_gmt_sec() parameters
sql/mysql_priv.h:
  New my_gmt_sec() parameters
sql/mysqld.cc:
  Remove LOCK_timezone.
  Code cleanup
sql/time.cc:
  Fixed problem with localtime -> gmt where some times resulted in
  different (but correct) timestamps. Now MySQL should use the smallest
  possible timestamp value in this case.  (Bug 316)

mysql-test/t/raid.test

@@ -1,5 +1,7 @@
 -- require r/have_raid.require
+disable_query_log;
 show variables like "have_raid";
+enable_query_log;
 
 #
 # Test of raided tables