Fixed bug in LOCK TABLE + DROP TABLE when other thread was waiting for a table that was locked bug not droped


client/mysqltest.c:
  Fixed bug that comments did a ping
include/thr_lock.h:
  Added function to abort a lock for a specific thread
mysql-test/mysql-test-run.sh:
  Fixed where mysqltest traces are put
mysql-test/r/lock_multi.result:
  Test for LOCK TABLE + DROP TABLE bug
mysql-test/t/lock_multi.test:
  Test for LOCK TABLE + DROP TABLE bug
mysys/thr_lock.c:
  Added function to abort a lock for a specific thread
sql/handler.cc:
  Indentation cleanup
sql/lock.cc:
  Added function to abort a lock for a specific thread
sql/mysql_priv.h:
  Added function to abort a lock for a specific thread
sql/mysqld.cc:
  Use automatic recover even with --safe