Read blocks through page cache in check_block_record()
Don't read first bitmap on ma_open()
Don't require that a files block_size is equal to maria_block_size, if page cache is not setup yet.
Changed ma_test1, ma_test2, maria_chk and maria_pack to always create a page cache.
The above fixes so that ma_test_all now works again



BitKeeper/etc/ignore:
  added storage/maria/unittest/ma_pagecache_consist_1k-t-big storage/maria/unittest/ma_pagecache_consist_1kHC-t-big storage/maria/unittest/ma_pagecache_consist_1kRD-t-big storage/maria/unittest/ma_pagecache_consist_1kWR-t-big storage/maria/unittest/ma_pagecache_consist_64k-t-big storage/maria/unittest/ma_pagecache_consist_64kHC-t-big storage/maria/unittest/ma_pagecache_consist_64kRD-t-big storage/maria/unittest/ma_pagecache_consist_64kWR-t-big storage/maria/unittest/ma_pagecache_single_64k-t-big
include/maria.h:
  Added MARIA_MIN_PAGE_CACHE_SIZE
include/pagecache.h:
  Filedescriptors should be of type File
storage/maria/ma_bitmap.c:
  After merge fixes
  Create dummy bitmap on startup (can't read first bitmap becasue page cache may not be set up yet)
storage/maria/ma_blockrec.c:
  After merge fixes
storage/maria/ma_check.c:
  Use page cache to read rows-in-block rows.
  Don't initialize page cache; It's now done in maria_chk
storage/maria/ma_dynrec.c:
  Trivial code reorganization
storage/maria/ma_open.c:
  Don't give error for conflicting block size if page cache is not initalized.
  (Needed for maria_chk to be able to work on tables with different page sizes)
  After merge fixes
storage/maria/ma_page.c:
  Fix compiler warning
  Remove net needed asserts (Guranteed by ma_create())
storage/maria/ma_pagecache.c:
  Allow one to create a page cache with just one block
  (For trivail scan of table)
  Trivial code simplication
storage/maria/ma_test1.c:
  Always create a page cache (Maria now requires a page cache to work)
storage/maria/ma_test2.c:
  Always create a page cache (Maria now requires a page cache to work)
storage/maria/maria_chk.c:
  Remove command line options --maria_block_size and --pagecache_block_size.
  Set the global maria_block_size from the data file. This allows maria_chk to work with tables of different block sizes.
  Simply DESCRIPT handling; Allows us to remove one indentation level in maria_chk().
  Always initialize page cache if we are doing check/repair.
  (Most of the patch is reindentation of the code)
storage/maria/maria_def.h:
  After merge fix
storage/maria/maria_pack.c:
  Set maria_block_size based on the files block_size.
  Initalize page cache (needed for getting rows-in-blocks to works)