message: Improved usage message for config-build.py script.
  The script now informs users that they can directly pass in CMake arguments.
diff: @@ -24,7 +24,11 @@ def extract_cmake_location(file_path):
  -parser = argparse.ArgumentParser(description="Configure cmake build.")
  +parser = argparse.ArgumentParser(description="Configure cmake build.",
  + epilog="Note: Additional or unrecognized parameters will be passed directly to cmake."
  + " For example, append '-DENABLE_OPENMP=ON' to enable OpenMP."
  + " See the toolkit QuickStart guide for a list of available CMake options."
  + )
  parser.add_argument("-bp",
  "--buildpath",
  @@ -57,7 +61,7 @@ parser.add_argument("-x",
  parser.add_argument("-ecc",
  "--exportcompilercommands",
  action='store_true',
  - help="generate a compilation database. Can be used by the clang tools such as clang-modernize. Will create a file called 'compile_commands.json' in build directory.")
  + help="generate a compilation database. Can be used by the clang tools such as clang-modernize. Will create a 'compile_commands.json' file in build directory.")
  parser.add_argument("-hc",
  "--hostconfig",
  @@ -67,7 +71,7 @@ parser.add_argument("-hc",
  args, unknown_args = parser.parse_known_args()
  if unknown_args:
  - print "[config-build]: Passing the following unknown arguments directly to cmake... %s" % unknown_args
  + print "[config-build]: Passing the following arguments directly to cmake... %s" % unknown_args
  ########################
  # Find CMake Cache File
  