+ Turned on localised is.sorted test in fastorder forwards.
+ Added bench() of fastorder to setkey.  May turn into calibrate() one day to tune forwards adaptive parameters to user's hardware.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1080 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'