Changes per serg to http://lists.mysql.com/internals/30281

Re-enabled --delayed-insert


client/mysqldump.c:
  BUG #7815 
  
  Changes per serg on patch: http://lists.mysql.com/internals/30281
  
  1. Re-enabled --delayed-insert
       - modified options, removed code that was in place until bug was 
         fixed    
  2. Moved the call to get_table_structure to dump_table 
    - Use added 'ignore_flag' variable to determine what exactly is
      being ignored - whole table or just delayed insert ability
  3. Changed return type of ignore_table to char with byte value that
     determines what exactly is being ignored - the whole table, or
     delayed inserts
  4. Added ignore_table flags IGNORE_DATA and IGNORE_INSERT_DELAYED
  5. Added logic in get_table_structure to not append INSERT data text
     if the table's data isn't going to be dumped because the return
     value from ignore_table is IGNORE_DATA
  6. Changed the name of numFields to numfields. Studly caps aren't
     consistent with the rest of the code!
  7. Added inclusive list to check_if_ignore_table to set the flag to
     IGNORE_INSERT_DELAYED if the table type doesn't support delayed
     inserts.
  8. More documentation
mysql-test/r/mysqldump.result:
  BUG #7815 new results
mysql-test/r/mysqldump-max.result:
  BUG #7815
  
  New test results
mysql-test/t/mysqldump-max.test:
  BUG #7815
  New test for testing if insert delayed is applied to tables that support
  it in mysqldump, but only if all storage engines in test have been compiled
  in