Sync with 1.6.6 NEWS bullets.

This commit was SVN r29116.
2013-09-04 14:47:34 +00:00 · 2013-09-04 14:47:34 +00:00 · 4bd5023593
--- a/2
+++ b/2
@ -224,6 +224,8 @@ Trunk (not on release branches yet)
 1.6.6 (unreleased)
 ------------------

+- Fix MPI_IS_THREAD_MAIN to return the correct value.  Thanks to
+  Lisandro Dalcin for pointing out the issue.
 - Update VT to 5.14.4.4:
  - Fix C++-11 issue.
  - Fix support for building RPMs on Fedora with CUDA libraries.