Update to 7-Zip 17.01 Beta from Igor Pavlov

- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
  7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
  CPU utilization was slightly improved.
- 7-zip now creates multi-block xz archives by default. Block size can be
  specified with -ms[Size]{m|g} switch.
- xz decoder now can unpack random block from multi-block xz archives.  7-Zip
  File Manager now can open nested multi-block xz archives (for example,
  image.iso.xz) without full unpacking of xz archive.
- 7-Zip now can create zip archives from stdin to stdout.
- 7-Zip command line: @listfile now doesn't work after -- switch.  Use
  -i@listfile before -- switch instead.

fixed bugs:
- 7-Zip could add unrequired alternate file streams to WIM archives, for
  commands that contain filename wildcards and -sns switch.
- 7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
- 7-Zip 17.00 beta ignored "Use large memory pages" option.

C/7zCrc.c

@@ -1,5 +1,5 @@
 /* 7zCrc.c -- CRC32 init
-2017-04-03 : Igor Pavlov : Public domain */
+2017-06-06 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -86,8 +86,8 @@ void MY_FAST_CALL CrcGenerateTable()
   
       #ifdef MY_CPU_X86_OR_AMD64
       if (!CPU_Is_InOrder())
-        g_CrcUpdate = CrcUpdateT8;
       #endif
+        g_CrcUpdate = CrcUpdateT8;
     #endif
 
   #else
@@ -101,7 +101,7 @@ void MY_FAST_CALL CrcGenerateTable()
       g_CrcUpdate = CrcUpdateT4;
       #if CRC_NUM_TABLES >= 8
       g_CrcUpdateT8 = CrcUpdateT8;
-      // g_CrcUpdate = CrcUpdateT8;
+      g_CrcUpdate = CrcUpdateT8;
       #endif
     }
     else if (p[0] != 1 || p[1] != 2)
@@ -118,7 +118,7 @@ void MY_FAST_CALL CrcGenerateTable()
       g_CrcUpdate = CrcUpdateT1_BeT4;
       #if CRC_NUM_TABLES >= 8
       g_CrcUpdateT8 = CrcUpdateT1_BeT8;
-      // g_CrcUpdate = CrcUpdateT1_BeT8;
+      g_CrcUpdate = CrcUpdateT1_BeT8;
       #endif
     }
   }