Fixed handling of disabled-tests options

* tests to be disabled are listed by name in an external file, one per line.
  these are read from disk line-by-line into an array, and later put back together into
  a single string with a newline ("\n") separator, presumably for marshalling over IPC.
  before this fix, there was an attempt to split these out again using an overload of
  `StringArray::fromTokens` which uses whitespace delimiters, ultimately causing test cases
  with spaces in to not be disabled (e.g. "Automatable Parameters" end up in the options
  array as two entries, so the test case isn't picked up as a match).
  using `StringArray::fromLines` fixes the issue

Author: LucasThompson

Source/Validator.cpp

@@ -474,7 +474,7 @@ class ValidatorSlaveProcess : public ChildProcessSlave,
             options.dataFile = File (v[IDs::dataFile].toString());
             options.outputDir = File (v[IDs::outputDir].toString());
             options.withGUI = v.getProperty (IDs::withGUI, true);
-            options.disabledTests = StringArray::fromTokens (v.getProperty (IDs::disabledTests).toString(), false);
+            options.disabledTests = StringArray::fromLines (v.getProperty (IDs::disabledTests).toString());
 
             for (auto c : v)
             {