Log Message:
Changes 2.11.0:
* Packages must have been installed under R >= 2.10.0, as the
  current help system is the only one now supported.
* A port to 64-bit Windows is now available as well as binary package
  repositiories: see the 'R Administration and Installation Manual'.
* Argument matching for primitive functions is now done in the same way
  as for interpreted functions except for the deliberate exceptions
	call switch .C .Fortran .Call .External
  all of which use positional matching for their first argument,
  and also some internal-use-only primitives.
* The default device for command-line R at the console on Mac OS X
  is now quartz() and not X11().

New features
* The 'open' modes for connections are now interpreted more consistently.
* R CMD INSTALL now uses the internal untar() in package utils.
* help(try.all.packages = TRUE) is much faster.
* R CMD check has a new option '--timings' to record per-example timings
  in file <pkg>.Rcheck/<pkg>-Ex.timings.
* The TRE library has been updated to version 0.8.0 (minor bugfixes).
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