Merge branch 'parallel-tests-work' into ng/master

* parallel-tests-work:
  [ng] tests: fix a spurious failure on Solaris 10
  [ng] parallel-tests: fix confusing function names in Makefile recipes
  [ng] parallel-tests: remove obsolete comment
  [ng] tests: run long-running ones early (useful with parallel make)
  [ng] build: define $(TESTS) through a wildcard
  [ng] parallel-tests: support "TESTS = $(srcdir)/foo.test"
  [ng] coverage: parallel-tests and dynamic $(TESTS) content
  [ng] parallel-tests: simplify automake-time preprocessing
  [ng] cleanup: simplify %transforms for parallel-tests handling
  [ng] parallel-tests: simplify, using pattern rules with multiple targets

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>