some unit tests fail with g++ 4.8.4

[jmp75]

Curiously not an issue with g++ 5.4.
Oh, also, it seems to hang...

-------------------------------------------------------------------------------
trapezoidal, discrete RNG to sample from a population of points, as used to
create the sub-complexes
-------------------------------------------------------------------------------
  REQUIRE( requireRelativeEqual(expectedProportions, Normalize(p), 4.5 * 1e-2) )
with expansion:
  false

Complex for SCE, single objective
/home/ubuntu/src/github_jm/wila/tests/main.cpp:552: FAILED:
  REQUIRE( (hcStart + 3) >= T::NumInstances() )
with expansion:
  3 >= 23