Use a newer boost than the common superbuild.

This is an attempt to work around an MSVC 2015 internal
compiler error.

This also bumps remus to catch a fix for a link-error
bug in the newer boost.
Status Job ID Name Coverage
  External
passed cdash

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

00:43:47

failed cmb@master-kerbin-windows-shared-release+superbuild

00:44:28

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

00:00:08

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

00:54:16

failed cmb@master-norkit-osx-shared-release+superbuild

01:34:57

failed cmb@master-praxis-windows-shared-release+superbuild

04:04:25

passed cmb@master-talosiv-osx-shared-release+superbuild

01:06:37

passed cmb@master-tatooine-osx-shared-release+superbuild

01:04:34

passed ghostflow-branch-check-master

failed smtk@master-kerbin-windows-shared-release+superbuild

00:36:28

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

00:00:12

passed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

00:42:37

passed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

00:26:16

passed smtk@master-norkit-osx-shared-release+superbuild

01:27:12

failed smtk@master-praxis-windows-shared-release+superbuild

02:24:05

passed smtk@master-talosiv-osx-shared-release+superbuild

01:04:18

passed smtk@master-tatooine-osx-shared-release+superbuild

01:01:42