Log Message:
Changes 4.53:
- From Windows version of 7-zip 4.53 :
  - The bug in 7-Zip 4.48 - 4.52 beta was fixed:
      7-Zip could create .ZIP archives with broken files.
  - Some bugs were fixed.

Changes 4.52:
- From Windows version of 7-zip 4.52 :
  - 7z now can unpack Compound files (msi, doc, ...).
  - Some bugs were fixed (CAB decompressing)
- lzma (CPP/7zip/Compress/LZMA_Alone) is now multi-threaded.
- fixed 632912: Extracting large directories takes quadratic time
  (this bug was not fully fixed ...)
- fixed: "7za x -odirectory archive.7z" now works even if \ 
"directory" is a symbolic link.
- makefile.linux_s390x added : support for Linux on IBM z/Series Mainframe with \ 
s390x CPU
- fixed crashes on BeOs with the flag "@filename"
- cleanup in the makefile : defining LITTLE_ENDIAN or BIG_ENDIAN is not needed \ 
anymore
- ppmd.exe added (CPP/7zip/Compress/PPMD_Alone)