Fix for #5405. unique(.) on null data.table returns null data.table now. Added test 1224.
Minor change to test.data.table so that cc(TRUE) runs smoothly on mac. Hopefully it doesn't break any of yours. If so, please let me know.
forder edge case - forder(length 0 VECSXP) now returns integer(0) to be consistent with base:::order.
data.table(list()), data.table(data.table()), data.table(data.frame()) return null data.table as expected. Fix for #5377.
Fixes for #5377, #5405, forder edge case, data.table(.) edge cases

+ data.table(list()), data.table(data.table()), data.table(data.frame()) return null data.table as expected. Fix for #5377.
+ forder edge case - forder(length 0 VECSXP) now returns integer(0) to be consistent with base:::order.
+ Minor change to test.data.table so that cc(TRUE) runs smoothly on mac. Hopefully it doesn't break any of yours. If so, please let me know.
+ Fix for #5405. unique(.) on null data.table returns null data.table now. Added test 1224.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1206 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
NEWS/comments only.

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/datatable@1207 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'refs/heads/r-forge-git-svn-local'
Updated NEWS corresponding to changes in commit #1206 (1.9.3).