#2446 Shrink the spiral wave reference results, to the size they were supposed to be anyway looking at the test.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@20329 b5f69653-2bf5-0310-8201-b0dafb8e1405
Fix build on AJ's Mac

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@20330 b5f69653-2bf5-0310-8201-b0dafb8e1405