Bring the make_dist_tarball gnu tools version checks up to date from

the v1.3 branch's r19812:

Update the make_dist_tarball script to check for the proper GNU tool
versions as posted on http://www.open-mpi.org/svn/building.php
 * m4 1.4.11
 * autoconf 2.63
 * automake 1.10.1
 * libtool 2.2.6

This commit was SVN r19813.

The following SVN revision numbers were found above:
  r19812 --> open-mpi/ompi@706923f7b1

contrib/dist/make_dist_tarball

@@ -24,8 +24,8 @@
 
 M4_TARGET_VERSION=1.4.11
 AM_TARGET_VERSION=1.10.1
-AC_TARGET_VERSION=2.62
-LT_TARGET_VERSION=2.2.4
+AC_TARGET_VERSION=2.63
+LT_TARGET_VERSION=2.2.6
 
 #
 # First things first -- check that the auto versions that we have are