Merge with MySQL 5.1.50

- Changed to still use bcmp() in certain cases becasue
  - Faster for short unaligneed strings than memcmp()
  - Bettern when using valgrind
- Changed to use my_sprintf() instead of sprintf() to get higher portability for old systems
- Changed code to use MariaDB version of select->skip_record()
- Removed -%::SCCS/s.% from Makefile.am:s to remove automake warnings

sql/log_event_old.cc

@@ -441,7 +441,7 @@ copy_extra_record_fields(TABLE *table,
 
  DBUG_ASSERT(master_reclength <= table->s->reclength);
   if (master_reclength < table->s->reclength)
-    bmove_align(table->record[0] + master_reclength,
+    memcpy(table->record[0] + master_reclength,
                 table->record[1] + master_reclength,
                 table->s->reclength - master_reclength);
     
@@ -720,7 +720,7 @@ static int find_and_fetch_row(TABLE *table, uchar *key)
       rnd_pos() returns the record in table->record[0], so we have to
       move it to table->record[1].
      */
-    bmove_align(table->record[1], table->record[0], table->s->reclength);
+    memcpy(table->record[1], table->record[0], table->s->reclength);
     DBUG_RETURN(error);
   }
 
@@ -1213,7 +1213,7 @@ int Update_rows_log_event_old::do_exec_row(TABLE *table)
     overwriting the default values that where put there by the
     unpack_row() function.
   */
-  bmove_align(table->record[0], m_after_image, table->s->reclength);
+  memcpy(table->record[0], m_after_image, table->s->reclength);
   copy_extra_record_fields(table, m_master_reclength, m_width);
 
   /*