Merged revisions 78297,78308 via svnmerge from

Merged revisions 78297,78308 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r78297 | andrew.kuchling | 2010-02-22 03:29:10 +0100 (Mo, 22 Feb 2010) | 1 line

  #7076: mention SystemRandom class near start of the module docs; reword change description for clarity.  Noted by Shawn Ligocki.
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  r78308 | andrew.kuchling | 2010-02-22 16:13:17 +0100 (Mo, 22 Feb 2010) | 2 lines

  #6414: clarify description of processor endianness.
  Text by Alexey Shamrin; I changed 'DEC Alpha' to the more relevant 'Intel Itanium'.
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