Backport to 5.5.99

                    it returns misleading 'table is full'

Innodb returns a misleading error message "table is full" 
when the number of active concurrent transactions is greater
than 1024.

Fixed by adding errorcode "ER_TOO_MANY_CONCURRENT_TRXS" to the
error codes. Innodb should return HA_TOO_MANY_CONCURRENT_TRXS
to mysql which is then mapped to ER_TOO_MANY_CONCURRENT_TRXS


Note: testcase is not written as this was reproducible only by
      changing innodb code.

Add all HA error numbers and descriptions to perror.

Add reminder to header.

This is already fixed in smarter ways in future codebases, and this 
codebase is unlikely to change, since new development is forbidden
here.

extended perror to enable printing of Win32 system errors

  fixed warning in 5.1-marvel in fix for bug 25177

  in perror and handler descriptors (BUG#25177)
Fixed problem of masking mysql error by system
  error in perror (BUG#23028)

The following type conversions was done:

- Changed byte to uchar
- Changed gptr to uchar*
- Change my_string to char *
- Change my_size_t to size_t
- Change size_s to size_t

Removed declaration of byte, gptr, my_string, my_size_t and size_s. 

Following function parameter changes was done:
- All string functions in mysys/strings was changed to use size_t
  instead of uint for string lengths.
- All read()/write() functions changed to use size_t (including vio).
- All protocoll functions changed to use size_t instead of uint
- Functions that used a pointer to a string length was changed to use size_t*
- Changed malloc(), free() and related functions from using gptr to use void *
  as this requires fewer casts in the code and is more in line with how the
  standard functions work.
- Added extra length argument to dirname_part() to return the length of the
  created string.
- Changed (at least) following functions to take uchar* as argument:
  - db_dump()
  - my_net_write()
  - net_write_command()
  - net_store_data()
  - DBUG_DUMP()
  - decimal2bin() & bin2decimal()
- Changed my_compress() and my_uncompress() to use size_t. Changed one
  argument to my_uncompress() from a pointer to a value as we only return
  one value (makes function easier to use).
- Changed type of 'pack_data' argument to packfrm() to avoid casts.
- Changed in readfrm() and writefrom(), ha_discover and handler::discover()
  the type for argument 'frmdata' to uchar** to avoid casts.
- Changed most Field functions to use uchar* instead of char* (reduced a lot of
  casts).
- Changed field->val_xxx(xxx, new_ptr) to take const pointers.

Other changes:
- Removed a lot of not needed casts
- Added a few new cast required by other changes
- Added some cast to my_multi_malloc() arguments for safety (as string lengths
  needs to be uint, not size_t).
- Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done
  explicitely as this conflict was often hided by casting the function to
  hash_get_key).
- Changed some buffers to memory regions to uchar* to avoid casts.
- Changed some string lengths from uint to size_t.
- Changed field->ptr to be uchar* instead of char*. This allowed us to
  get rid of a lot of casts.
- Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar
- Include zlib.h in some files as we needed declaration of crc32()
- Changed MY_FILE_ERROR to be (size_t) -1.
- Changed many variables to hold the result of my_read() / my_write() to be
  size_t. This was needed to properly detect errors (which are
  returned as (size_t) -1).
- Removed some very old VMS code
- Changed packfrm()/unpackfrm() to not be depending on uint size
  (portability fix)
- Removed windows specific code to restore cursor position as this
  causes slowdown on windows and we should not mix read() and pread()
  calls anyway as this is not thread safe. Updated function comment to
  reflect this. Changed function that depended on original behavior of
  my_pwrite() to itself restore the cursor position (one such case).
- Added some missing checking of return value of malloc().
- Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow.
- Changed type of table_def::m_size from my_size_t to ulong to reflect that
  m_size is the number of elements in the array, not a string/memory
  length.
- Moved THD::max_row_length() to table.cc (as it's not depending on THD).
  Inlined max_row_length_blob() into this function.
- More function comments
- Fixed some compiler warnings when compiled without partitions.
- Removed setting of LEX_STRING() arguments in declaration (portability fix).
- Some trivial indentation/variable name changes.
- Some trivial code simplifications:
  - Replaced some calls to alloc_root + memcpy to use
    strmake_root()/strdup_root().
  - Changed some calls from memdup() to strmake() (Safety fix)
  - Simpler loops in client-simple.c

 - strerror might return NULL on some platforms

  Changed header to GPL version 2 only

 - Since error 1186 is not found among NDB error codes, the message retuned should indicate that.

  - Add test case(execute perror)
  - Check if strerror has returned NULL and set msg to "Unknown Error" in that case
  - Thanks to Steven Xie for pointing out how to fix. 

  BUG#11999, incorrect --help on perror with ndb

(Found during build process)

corresponds to an OS or MySQL error. (Bug #8517)

perror.c:
  Copy output of strerr to temp buffer to prevent system overwrite on Windows

range for BETWEEN typo fixed

used in the handle_options() function (instead of using additional 
handle_option() parameter). The default value of the 
my_getopt_error_reporter is default_reporter(). One can set it to
other functions if case of need.

  Added declarations for print_msg_to_log and vprint_msg_to_log.  sql_print_error are simple functions that wrap calls to print_msg_to_log.  Define the different error types with MY_ERROR_TYPE, MY_WARNING_TYPE, and MY_INFORMATION_TYPE
gen_lex_hash.cc:
  Added NULL error reporting parameter to handle_options
log.cc:
  Add print_msg_to_log, print_buffer_to_log, and vprint_msg_to_log.  Print_msg_to_log will write the message to the windows event log if on NT.  We now have error, warning, and information versions of sql_print_xxxx.  T his is a variation of a similar changeset WAX did.
mysqld.cc:
  Added option_error_reporter callback function and pass that into handle_options
mysql.cc:
  Added NULL as error reporter arg to the end of handle_options
Many files:
  Added NULL error reporter parameter as the last paramter to handle_options
my_getopt.c:
  Added second function pointer to server as an error reporting callback.  Added local function report_option_error that will either write the error to stderr or to the error reporting callback.  changed all calls in handle_options from fprintf(stderr, ... ) to report_option_error
my_getopt.h:
  Changed declaration of handle_options to use typedefs for the two function pointers.  added second function pointer to server as an error reporting callback
mysqld.dsp:
  Added custom build step for compiling message file and added message resource file (output of mc)

  MySql -> MySQL (Bug #4182)

(Note: This affects only comments, not variable names.)

  fix typo.