Accepted increased leaks due to forall intents; added futures.
Merge pull request #904 from vasslitvinov/address-memleaks-in-numa-from-forall-intents

Accepted increased leaks due to forall intents; added futures.

* Accepted the additional memory leak of 16 bytes due to forall intents #614
in several tests exposed by "numa" testing, by adjusting .good files.

They are due to the same cause as in #614 for this test:

  memory/sungeun/refCount/domainMaps.chpl

For a detailed explanation, see the commit df8e3b0.

* Added two futures that expose this issue:
    memleaks1-minimal.chpl is the smallest amount of code that hits it;
    memleaks2-BlockDist.chpl is a realistic example.
  I added .skipifs to test these only in a couple of configurations.
  Once the leaks are fixed, .skipifs can be removed.

* While there:
 - created test/parallel/forall/
 - moved parallel/taskPar/forallIntents/*
   to test/parallel/forall/vass/