[svn-r3349] Added the ability to check for handles allocated but not freed; also a number of fixes to plug leaks in handles that this capability exposed

[svn-r3347] Enhanced tests to catch more leaks in the use of handles, as well as adding some manual tests for debugging support and some general cleanup

for solving the SEEK_SET problem and fixes the bug introduced in r3316.  Also
beef up the seekavail test to ensure that SEEK_SET and friends can still be used
as case labels.  Reviewed by jayesh@.

MPI::ERRORS_RETURN does *not* throw.  No reviewer.

it claimed to be.  Reviewed by thakur@.

[svn-r3311] 1. Moved the port_mask initialization code to declaration time (thanks to Roberto for pointing this out).

2. Fixed a bug in identifying the case when there are no more port_name values left.

3. Added back the FIXME for the case where a slave connects to two masters. This part is not fixed yet.

Reviewed by goodell.

[svn-r3309] This fix should allow us to reuse the tags used for the temporary communicators in dynamic processes. Fix for ticket #122. Reviewed by thakur.

to not check for -1 node IDs because they will never occur.

Reviewed by buntinas@.

[svn-r3300] if MPID_MPI_STATE_DECL evaluates to ';' Solaris compiler complains of variable declarations after it

[svn-r3299] if MPID_MPI_STATE_DECL evaluates to ';' Solaris compiler complains of variable declarations after it

[svn-r3298] Allow a configure option to set the rank to 16 or 32 bits. 16-bit rank is still the default. 32-bit ranks cannot be used till the Generic packet type size is fixed.

[svn-r3296] Added message about number of reqs in unexpected buffer when we fail to allocate a request for an unexpected message.  This is a more informative message so the user can see why a request was unable to be allocated.

previous commit, r3285.

[svn-r3279] Moved the xFLAGS reset to after AC_PROG_CC, so that CLAGS are used for checking whether the compiler works fine in AC_PROG_CC. Reviewed by goodell.

[svn-r3276] Fixed declarations to use PMPI_LOCAL instead of static (necessary when weak symbols are not supported)