Add missing files in Makefile.am listing

cmr=v1.7.5:ticket=#4372
Remove "medium" RMA interfaces

We no longer specify interfaces with choice buffers in the TKR "mpi"
module implementation -- MPI-3 prohibits it (see r30169 and r30170 for
more details).

cmr=v1.7.5:ticket=#4372
Add new MPI-3.1 tools interface functions.

See https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/377

This ticket adds the following functions to the standard:

 - MPI_T_cvar_get_index, MPI_T_pvar_get_index, and MPI_T_category_get_index

The ticket has passed and the functions are part of MPI-3.1 that will
be released sometime later this year. In Open MPI the functions expose
existing internal functionality so they are low-risk to add to 1.8.0. I
will leave it up to Ralph whether he wants to accept these into 1.8.

cmr=v1.8:reviewer=rhc
Also bump the Fortran MPI version constants to 3.0

cmr=v1.7.5:ticket=#4371
osc/rdma: now that the access epoch is not open after MPI_Win_create* we
need to enable the access epoch in MPI_Win_fence.

I missed this change when I fixed the semantics of MPI_Win_create. With
this commit our one-sided MTT runs are now running clean.

cmr=v1.7.5:reviewer=dgoodell