- _ma_apply_redo_index: Assertion `page_offset != 0 && page_offset + length <= page_length' failed
Fixes one bug and one log assert when inserting rows:
- _ma_log_split: Assertion `org_length <= info->s->max_index_block_size' failed
- write_block_record:  Assertion '(data_length < MAX_TAIL_SIZE(block_size)' failed
Mark in recovery log where _ma_log_add() calls was done (for better debugging).

storage/maria/ma_bitmap.c:
  Don't write a head part on a tail page. (Caused an assert in write_block_record())
storage/maria/ma_delete.c:
  Mark in recovery log where _ma_log_add() calls was done
storage/maria/ma_key_recover.c:
  Mark in recovery log where _ma_log_add() calls was done
  Fixed not handled logging case for overfull index pages.
storage/maria/ma_key_recover.h:
  Mark in recovery log where _ma_log_add() calls was done
storage/maria/ma_loghandler.h:
  Mark in recovery log where _ma_log_add() calls was done
storage/maria/ma_rt_key.c:
  Mark in recovery log where _ma_log_add() calls was done
storage/maria/ma_write.c:
  Mark in recovery log where _ma_log_add() calls was done.
  Fixed wrong call to _ma_split_page() for overfull pages