mysql-test/r/innodb_cache.result:
  new test for query cache with transactions
mysql-test/t/innodb_cache.test:
  new test for query cache with transactions
sql/sql_cache.cc:
  processing trunsactional tables in query cache & removing strlen
sql/sql_class.cc:
  processing trunsactional tables in query cache & added transaction-live memory
sql/sql_class.h:
  processing trunsactional tables in query cache & added transaction-live memory
sql/sql_parse.cc:
  processing trunsactional tables in query cache & added transaction-live memory
sql/table.h:
  removing strlen operation from query cache