Open MPI v1.2.3 is out the door, put in a placeholder for 1.2.4 NEWS.

Plus a spelling fix.

This commit was SVN r15149.

NEWS

@@ -72,6 +72,12 @@ Trunk (not on release branches yet)
   --> Expected: 1.3
 
 
+1.2.4
+-----
+
+- Nothing new yet.
+
+
 1.2.3
 -----
 
@@ -98,7 +104,7 @@ Trunk (not on release branches yet)
 - Rename the oob_tcp_include/exclude MCA params to oob_tcp_if_include/exclude
   so that they match the naming convention of the btl_tcp_if_include/exclude
   params.  The old names are depreciated, but will still work.
-- Add -wd as a synonymn for the -wdir orterun/mpirun option.
+- Add -wd as a synonym for the -wdir orterun/mpirun option.
 - Fix the mvapi BTL to compile properly with compilers that do not support
   anonymous unions.  Thanks to Luis Kornblueh for reporting the bug.