Update to MPICH 3.1.3

From the announcement:
This release adds several enhancements to Portals4 support, PAMI, RMA, and
ROMIO.  It also contains a large number of bug fixes.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@370515 35697150-7ecd-e111-bb59-0022644237b5
Clean up pkg-plist of my ports.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@370516 35697150-7ecd-e111-bb59-0022644237b5
devel/pecl-event: update 1.9.0 -> 1.10.3

PR:		194159
Submitted by:	John Chen <johnpupu@gmail.com>
Approved by:	mentors (implicit)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@370517 35697150-7ecd-e111-bb59-0022644237b5